Home / 4,862.70-7,288.65-2,521.80

Finding the Fourth Proportional to 4,862.70, 7,288.65 and 2,521.80

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Solution

The fourth proportional to 4,862.70, 7,288.65 and 2,521.80 is: 3,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,862.70 : 7,288.65 = 2,521.80 : x
  2. Step 2: Convert to fraction form
    4,862.70/7,288.65 = 2,521.80/x
  3. Step 3: Cross multiply
    4,862.70x = 7,288.65 × 2,521.80
  4. Step 4: Simplify right side
    4,862.70x = 18,380,517.57
  5. Step 5: Solve for x
    x = 18,380,517.57/4,862.70
  6. Step 6: Final answer
    x = 3,779.90

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1.5x scale

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.