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Finding the Fourth Proportional to 1,347.47, 2,021.32 and 373.57

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Solution

The fourth proportional to 1,347.47, 2,021.32 and 373.57 is: 560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.47 : 2,021.32 = 373.57 : x
  2. Step 2: Convert to fraction form
    1,347.47/2,021.32 = 373.57/x
  3. Step 3: Cross multiply
    1,347.47x = 2,021.32 × 373.57
  4. Step 4: Simplify right side
    1,347.47x = 755,105.61
  5. Step 5: Solve for x
    x = 755,105.61/1,347.47
  6. Step 6: Final answer
    x = 560.39

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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.