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Finding the Fourth Proportional to 1,046.48, 1,569.99 and 738.94

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Solution

The fourth proportional to 1,046.48, 1,569.99 and 738.94 is: 1,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.48 : 1,569.99 = 738.94 : x
  2. Step 2: Convert to fraction form
    1,046.48/1,569.99 = 738.94/x
  3. Step 3: Cross multiply
    1,046.48x = 1,569.99 × 738.94
  4. Step 4: Simplify right side
    1,046.48x = 1,160,128.41
  5. Step 5: Solve for x
    x = 1,160,128.41/1,046.48
  6. Step 6: Final answer
    x = 1,108.60

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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.