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Finding the Fourth Proportional to 1,337.07, 2,005.91 and 471.45

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Solution

The fourth proportional to 1,337.07, 2,005.91 and 471.45 is: 707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.07 : 2,005.91 = 471.45 : x
  2. Step 2: Convert to fraction form
    1,337.07/2,005.91 = 471.45/x
  3. Step 3: Cross multiply
    1,337.07x = 2,005.91 × 471.45
  4. Step 4: Simplify right side
    1,337.07x = 945,683.91
  5. Step 5: Solve for x
    x = 945,683.91/1,337.07
  6. Step 6: Final answer
    x = 707.28

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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.