Home / 4,139.74-6,207.65-1,505.39

Finding the Fourth Proportional to 4,139.74, 6,207.65 and 1,505.39

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Solution

The fourth proportional to 4,139.74, 6,207.65 and 1,505.39 is: 2,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.74 : 6,207.65 = 1,505.39 : x
  2. Step 2: Convert to fraction form
    4,139.74/6,207.65 = 1,505.39/x
  3. Step 3: Cross multiply
    4,139.74x = 6,207.65 × 1,505.39
  4. Step 4: Simplify right side
    4,139.74x = 9,344,934.23
  5. Step 5: Solve for x
    x = 9,344,934.23/4,139.74
  6. Step 6: Final answer
    x = 2,257.37

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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.