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Finding the Fourth Proportional to 922.31, 1,383.46 and 374.49

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Solution

The fourth proportional to 922.31, 1,383.46 and 374.49 is: 561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.31 : 1,383.46 = 374.49 : x
  2. Step 2: Convert to fraction form
    922.31/1,383.46 = 374.49/x
  3. Step 3: Cross multiply
    922.31x = 1,383.46 × 374.49
  4. Step 4: Simplify right side
    922.31x = 518,084.08
  5. Step 5: Solve for x
    x = 518,084.08/922.31
  6. Step 6: Final answer
    x = 561.73

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.