Home / 4,862.20-7,287.90-2,521.30

Finding the Fourth Proportional to 4,862.20, 7,287.90 and 2,521.30

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Solution

The fourth proportional to 4,862.20, 7,287.90 and 2,521.30 is: 3,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,862.20 : 7,287.90 = 2,521.30 : x
  2. Step 2: Convert to fraction form
    4,862.20/7,287.90 = 2,521.30/x
  3. Step 3: Cross multiply
    4,862.20x = 7,287.90 × 2,521.30
  4. Step 4: Simplify right side
    4,862.20x = 18,374,982.27
  5. Step 5: Solve for x
    x = 18,374,982.27/4,862.20
  6. Step 6: Final answer
    x = 3,779.15

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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.