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Finding the Fourth Proportional to 925.50, 1,277.10 and 552.43

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Solution

The fourth proportional to 925.50, 1,277.10 and 552.43 is: 762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.50 : 1,277.10 = 552.43 : x
  2. Step 2: Convert to fraction form
    925.50/1,277.10 = 552.43/x
  3. Step 3: Cross multiply
    925.50x = 1,277.10 × 552.43
  4. Step 4: Simplify right side
    925.50x = 705,509.95
  5. Step 5: Solve for x
    x = 705,509.95/925.50
  6. Step 6: Final answer
    x = 762.30

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1.5x scale

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.