Home / 8,057.90-12,079.95-3,131.07

Finding the Fourth Proportional to 8,057.90, 12,079.95 and 3,131.07

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Solution

The fourth proportional to 8,057.90, 12,079.95 and 3,131.07 is: 4,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,057.90 : 12,079.95 = 3,131.07 : x
  2. Step 2: Convert to fraction form
    8,057.90/12,079.95 = 3,131.07/x
  3. Step 3: Cross multiply
    8,057.90x = 12,079.95 × 3,131.07
  4. Step 4: Simplify right side
    8,057.90x = 37,823,169.05
  5. Step 5: Solve for x
    x = 37,823,169.05/8,057.90
  6. Step 6: Final answer
    x = 4,693.93

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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.