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Finding the Fourth Proportional to 2,264.74, 3,397.19 and 621.28

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Solution

The fourth proportional to 2,264.74, 3,397.19 and 621.28 is: 931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.74 : 3,397.19 = 621.28 : x
  2. Step 2: Convert to fraction form
    2,264.74/3,397.19 = 621.28/x
  3. Step 3: Cross multiply
    2,264.74x = 3,397.19 × 621.28
  4. Step 4: Simplify right side
    2,264.74x = 2,110,594.60
  5. Step 5: Solve for x
    x = 2,110,594.60/2,264.74
  6. Step 6: Final answer
    x = 931.94

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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.