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Finding the Fourth Proportional to 3,687.66, 5,088.87 and 2,009.16

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Solution

The fourth proportional to 3,687.66, 5,088.87 and 2,009.16 is: 2,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.66 : 5,088.87 = 2,009.16 : x
  2. Step 2: Convert to fraction form
    3,687.66/5,088.87 = 2,009.16/x
  3. Step 3: Cross multiply
    3,687.66x = 5,088.87 × 2,009.16
  4. Step 4: Simplify right side
    3,687.66x = 10,224,354.05
  5. Step 5: Solve for x
    x = 10,224,354.05/3,687.66
  6. Step 6: Final answer
    x = 2,772.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.