Home / 3,387.88-5,079.39-1,538.07

Finding the Fourth Proportional to 3,387.88, 5,079.39 and 1,538.07

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Solution

The fourth proportional to 3,387.88, 5,079.39 and 1,538.07 is: 2,306.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.88 : 5,079.39 = 1,538.07 : x
  2. Step 2: Convert to fraction form
    3,387.88/5,079.39 = 1,538.07/x
  3. Step 3: Cross multiply
    3,387.88x = 5,079.39 × 1,538.07
  4. Step 4: Simplify right side
    3,387.88x = 7,812,457.38
  5. Step 5: Solve for x
    x = 7,812,457.38/3,387.88
  6. Step 6: Final answer
    x = 2,306.00

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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.