Home / 10,281.80-15,422.66-2,490.64

Finding the Fourth Proportional to 10,281.80, 15,422.66 and 2,490.64

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Solution

The fourth proportional to 10,281.80, 15,422.66 and 2,490.64 is: 3,735.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.80 : 15,422.66 = 2,490.64 : x
  2. Step 2: Convert to fraction form
    10,281.80/15,422.66 = 2,490.64/x
  3. Step 3: Cross multiply
    10,281.80x = 15,422.66 × 2,490.64
  4. Step 4: Simplify right side
    10,281.80x = 38,412,204.34
  5. Step 5: Solve for x
    x = 38,412,204.34/10,281.80
  6. Step 6: Final answer
    x = 3,735.94

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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.