Home / 3,890.52-5,368.14-2,493

Finding the Fourth Proportional to 3,890.52, 5,368.14 and 2,493

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Solution

The fourth proportional to 3,890.52, 5,368.14 and 2,493 is: 3,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.52 : 5,368.14 = 2,493 : x
  2. Step 2: Convert to fraction form
    3,890.52/5,368.14 = 2,493/x
  3. Step 3: Cross multiply
    3,890.52x = 5,368.14 × 2,493
  4. Step 4: Simplify right side
    3,890.52x = 13,382,773.02
  5. Step 5: Solve for x
    x = 13,382,773.02/3,890.52
  6. Step 6: Final answer
    x = 3,439.84

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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.