Home / 3,716.88-5,125.37-2,389.47

Finding the Fourth Proportional to 3,716.88, 5,125.37 and 2,389.47

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Solution

The fourth proportional to 3,716.88, 5,125.37 and 2,389.47 is: 3,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.88 : 5,125.37 = 2,389.47 : x
  2. Step 2: Convert to fraction form
    3,716.88/5,125.37 = 2,389.47/x
  3. Step 3: Cross multiply
    3,716.88x = 5,125.37 × 2,389.47
  4. Step 4: Simplify right side
    3,716.88x = 12,246,905.91
  5. Step 5: Solve for x
    x = 12,246,905.91/3,716.88
  6. Step 6: Final answer
    x = 3,294.94

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1.5x scale

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.