Home / 8,090.88-12,139.56-2,545.08

Finding the Fourth Proportional to 8,090.88, 12,139.56 and 2,545.08

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Solution

The fourth proportional to 8,090.88, 12,139.56 and 2,545.08 is: 3,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.88 : 12,139.56 = 2,545.08 : x
  2. Step 2: Convert to fraction form
    8,090.88/12,139.56 = 2,545.08/x
  3. Step 3: Cross multiply
    8,090.88x = 12,139.56 × 2,545.08
  4. Step 4: Simplify right side
    8,090.88x = 30,896,151.36
  5. Step 5: Solve for x
    x = 30,896,151.36/8,090.88
  6. Step 6: Final answer
    x = 3,818.64

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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.