Home / 2,543.40-3,815.10-2,292.30

Finding the Fourth Proportional to 2,543.40, 3,815.10 and 2,292.30

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Solution

The fourth proportional to 2,543.40, 3,815.10 and 2,292.30 is: 3,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.40 : 3,815.10 = 2,292.30 : x
  2. Step 2: Convert to fraction form
    2,543.40/3,815.10 = 2,292.30/x
  3. Step 3: Cross multiply
    2,543.40x = 3,815.10 × 2,292.30
  4. Step 4: Simplify right side
    2,543.40x = 8,745,353.73
  5. Step 5: Solve for x
    x = 8,745,353.73/2,543.40
  6. Step 6: Final answer
    x = 3,438.45

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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.