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Finding the Fourth Proportional to 930.31, 1,283.76 and 537.25

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Solution

The fourth proportional to 930.31, 1,283.76 and 537.25 is: 741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.31 : 1,283.76 = 537.25 : x
  2. Step 2: Convert to fraction form
    930.31/1,283.76 = 537.25/x
  3. Step 3: Cross multiply
    930.31x = 1,283.76 × 537.25
  4. Step 4: Simplify right side
    930.31x = 689,700.06
  5. Step 5: Solve for x
    x = 689,700.06/930.31
  6. Step 6: Final answer
    x = 741.37

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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.