Home / 4,260.65-5,877.09-3,139.20

Finding the Fourth Proportional to 4,260.65, 5,877.09 and 3,139.20

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Solution

The fourth proportional to 4,260.65, 5,877.09 and 3,139.20 is: 4,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.65 : 5,877.09 = 3,139.20 : x
  2. Step 2: Convert to fraction form
    4,260.65/5,877.09 = 3,139.20/x
  3. Step 3: Cross multiply
    4,260.65x = 5,877.09 × 3,139.20
  4. Step 4: Simplify right side
    4,260.65x = 18,449,360.93
  5. Step 5: Solve for x
    x = 18,449,360.93/4,260.65
  6. Step 6: Final answer
    x = 4,330.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.