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Finding the Fourth Proportional to 6,590.84, 9,886.24 and 1,660.85

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Solution

The fourth proportional to 6,590.84, 9,886.24 and 1,660.85 is: 2,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590.84 : 9,886.24 = 1,660.85 : x
  2. Step 2: Convert to fraction form
    6,590.84/9,886.24 = 1,660.85/x
  3. Step 3: Cross multiply
    6,590.84x = 9,886.24 × 1,660.85
  4. Step 4: Simplify right side
    6,590.84x = 16,419,551.42
  5. Step 5: Solve for x
    x = 16,419,551.42/6,590.84
  6. Step 6: Final answer
    x = 2,491.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.