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Finding the Fourth Proportional to 1,062.85, 1,463.09 and 922.14

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Solution

The fourth proportional to 1,062.85, 1,463.09 and 922.14 is: 1,269.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.85 : 1,463.09 = 922.14 : x
  2. Step 2: Convert to fraction form
    1,062.85/1,463.09 = 922.14/x
  3. Step 3: Cross multiply
    1,062.85x = 1,463.09 × 922.14
  4. Step 4: Simplify right side
    1,062.85x = 1,349,173.81
  5. Step 5: Solve for x
    x = 1,349,173.81/1,062.85
  6. Step 6: Final answer
    x = 1,269.39

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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.