Home / 1,337.10-1,845.14-777.57

Finding the Fourth Proportional to 1,337.10, 1,845.14 and 777.57

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Solution

The fourth proportional to 1,337.10, 1,845.14 and 777.57 is: 1,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.10 : 1,845.14 = 777.57 : x
  2. Step 2: Convert to fraction form
    1,337.10/1,845.14 = 777.57/x
  3. Step 3: Cross multiply
    1,337.10x = 1,845.14 × 777.57
  4. Step 4: Simplify right side
    1,337.10x = 1,434,727.45
  5. Step 5: Solve for x
    x = 1,434,727.45/1,337.10
  6. Step 6: Final answer
    x = 1,073.01

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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.