Home / 3,139.44-4,332.60-1,880.88

Finding the Fourth Proportional to 3,139.44, 4,332.60 and 1,880.88

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Solution

The fourth proportional to 3,139.44, 4,332.60 and 1,880.88 is: 2,595.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.44 : 4,332.60 = 1,880.88 : x
  2. Step 2: Convert to fraction form
    3,139.44/4,332.60 = 1,880.88/x
  3. Step 3: Cross multiply
    3,139.44x = 4,332.60 × 1,880.88
  4. Step 4: Simplify right side
    3,139.44x = 8,149,100.69
  5. Step 5: Solve for x
    x = 8,149,100.69/3,139.44
  6. Step 6: Final answer
    x = 2,595.72

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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.