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Finding the Fourth Proportional to 952.17, 1,313.90 and 559.11

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Solution

The fourth proportional to 952.17, 1,313.90 and 559.11 is: 771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.17 : 1,313.90 = 559.11 : x
  2. Step 2: Convert to fraction form
    952.17/1,313.90 = 559.11/x
  3. Step 3: Cross multiply
    952.17x = 1,313.90 × 559.11
  4. Step 4: Simplify right side
    952.17x = 734,616.52
  5. Step 5: Solve for x
    x = 734,616.52/952.17
  6. Step 6: Final answer
    x = 771.52

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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.