Home / 4,255.54-5,870.97-3,139.17

Finding the Fourth Proportional to 4,255.54, 5,870.97 and 3,139.17

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Solution

The fourth proportional to 4,255.54, 5,870.97 and 3,139.17 is: 4,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.54 : 5,870.97 = 3,139.17 : x
  2. Step 2: Convert to fraction form
    4,255.54/5,870.97 = 3,139.17/x
  3. Step 3: Cross multiply
    4,255.54x = 5,870.97 × 3,139.17
  4. Step 4: Simplify right side
    4,255.54x = 18,429,972.89
  5. Step 5: Solve for x
    x = 18,429,972.89/4,255.54
  6. Step 6: Final answer
    x = 4,330.82

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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.