Home / 3,139.29-4,333.57-2,077.55

Finding the Fourth Proportional to 3,139.29, 4,333.57 and 2,077.55

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Solution

The fourth proportional to 3,139.29, 4,333.57 and 2,077.55 is: 2,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.29 : 4,333.57 = 2,077.55 : x
  2. Step 2: Convert to fraction form
    3,139.29/4,333.57 = 2,077.55/x
  3. Step 3: Cross multiply
    3,139.29x = 4,333.57 × 2,077.55
  4. Step 4: Simplify right side
    3,139.29x = 9,003,197.74
  5. Step 5: Solve for x
    x = 9,003,197.74/3,139.29
  6. Step 6: Final answer
    x = 2,867.91

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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.