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Finding the Fourth Proportional to 4,393.99, 6,586.88 and 2,639.45

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Solution

The fourth proportional to 4,393.99, 6,586.88 and 2,639.45 is: 3,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,393.99 : 6,586.88 = 2,639.45 : x
  2. Step 2: Convert to fraction form
    4,393.99/6,586.88 = 2,639.45/x
  3. Step 3: Cross multiply
    4,393.99x = 6,586.88 × 2,639.45
  4. Step 4: Simplify right side
    4,393.99x = 17,385,714.08
  5. Step 5: Solve for x
    x = 17,385,714.08/4,393.99
  6. Step 6: Final answer
    x = 3,956.71

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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.