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Finding the Fourth Proportional to 6,338.57, 9,507.85 and 1,721.57

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Solution

The fourth proportional to 6,338.57, 9,507.85 and 1,721.57 is: 2,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.57 : 9,507.85 = 1,721.57 : x
  2. Step 2: Convert to fraction form
    6,338.57/9,507.85 = 1,721.57/x
  3. Step 3: Cross multiply
    6,338.57x = 9,507.85 × 1,721.57
  4. Step 4: Simplify right side
    6,338.57x = 16,368,373.18
  5. Step 5: Solve for x
    x = 16,368,373.18/6,338.57
  6. Step 6: Final answer
    x = 2,582.35

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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.