Home / 3,139.15-4,332.16-1,880.41

Finding the Fourth Proportional to 3,139.15, 4,332.16 and 1,880.41

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Solution

The fourth proportional to 3,139.15, 4,332.16 and 1,880.41 is: 2,595.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.15 : 4,332.16 = 1,880.41 : x
  2. Step 2: Convert to fraction form
    3,139.15/4,332.16 = 1,880.41/x
  3. Step 3: Cross multiply
    3,139.15x = 4,332.16 × 1,880.41
  4. Step 4: Simplify right side
    3,139.15x = 8,146,221.45
  5. Step 5: Solve for x
    x = 8,146,221.45/3,139.15
  6. Step 6: Final answer
    x = 2,595.04

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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.