Home / 8,090.28-12,137.45-2,543.40

Finding the Fourth Proportional to 8,090.28, 12,137.45 and 2,543.40

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Solution

The fourth proportional to 8,090.28, 12,137.45 and 2,543.40 is: 3,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.28 : 12,137.45 = 2,543.40 : x
  2. Step 2: Convert to fraction form
    8,090.28/12,137.45 = 2,543.40/x
  3. Step 3: Cross multiply
    8,090.28x = 12,137.45 × 2,543.40
  4. Step 4: Simplify right side
    8,090.28x = 30,870,377.61
  5. Step 5: Solve for x
    x = 30,870,377.61/8,090.28
  6. Step 6: Final answer
    x = 3,815.74

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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.