Home / 1,372.24-2,055.90-713.32

Finding the Fourth Proportional to 1,372.24, 2,055.90 and 713.32

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Solution

The fourth proportional to 1,372.24, 2,055.90 and 713.32 is: 1,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.24 : 2,055.90 = 713.32 : x
  2. Step 2: Convert to fraction form
    1,372.24/2,055.90 = 713.32/x
  3. Step 3: Cross multiply
    1,372.24x = 2,055.90 × 713.32
  4. Step 4: Simplify right side
    1,372.24x = 1,466,514.59
  5. Step 5: Solve for x
    x = 1,466,514.59/1,372.24
  6. Step 6: Final answer
    x = 1,068.70

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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.