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Finding the Fourth Proportional to 1,337.44, 1,845.64 and 747.98

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Solution

The fourth proportional to 1,337.44, 1,845.64 and 747.98 is: 1,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.44 : 1,845.64 = 747.98 : x
  2. Step 2: Convert to fraction form
    1,337.44/1,845.64 = 747.98/x
  3. Step 3: Cross multiply
    1,337.44x = 1,845.64 × 747.98
  4. Step 4: Simplify right side
    1,337.44x = 1,380,501.81
  5. Step 5: Solve for x
    x = 1,380,501.81/1,337.44
  6. Step 6: Final answer
    x = 1,032.20

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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.