Home / 3,125.43-4,685.85-1,480.05

Finding the Fourth Proportional to 3,125.43, 4,685.85 and 1,480.05

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Solution

The fourth proportional to 3,125.43, 4,685.85 and 1,480.05 is: 2,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.43 : 4,685.85 = 1,480.05 : x
  2. Step 2: Convert to fraction form
    3,125.43/4,685.85 = 1,480.05/x
  3. Step 3: Cross multiply
    3,125.43x = 4,685.85 × 1,480.05
  4. Step 4: Simplify right side
    3,125.43x = 6,935,292.29
  5. Step 5: Solve for x
    x = 6,935,292.29/3,125.43
  6. Step 6: Final answer
    x = 2,218.99

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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.