Home / 1,337.16-1,845.48-777.96

Finding the Fourth Proportional to 1,337.16, 1,845.48 and 777.96

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Solution

The fourth proportional to 1,337.16, 1,845.48 and 777.96 is: 1,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.16 : 1,845.48 = 777.96 : x
  2. Step 2: Convert to fraction form
    1,337.16/1,845.48 = 777.96/x
  3. Step 3: Cross multiply
    1,337.16x = 1,845.48 × 777.96
  4. Step 4: Simplify right side
    1,337.16x = 1,435,709.62
  5. Step 5: Solve for x
    x = 1,435,709.62/1,337.16
  6. Step 6: Final answer
    x = 1,073.70

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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.