Home / 3,139.27-4,330.31-2,077.06

Finding the Fourth Proportional to 3,139.27, 4,330.31 and 2,077.06

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Solution

The fourth proportional to 3,139.27, 4,330.31 and 2,077.06 is: 2,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.27 : 4,330.31 = 2,077.06 : x
  2. Step 2: Convert to fraction form
    3,139.27/4,330.31 = 2,077.06/x
  3. Step 3: Cross multiply
    3,139.27x = 4,330.31 × 2,077.06
  4. Step 4: Simplify right side
    3,139.27x = 8,994,313.69
  5. Step 5: Solve for x
    x = 8,994,313.69/3,139.27
  6. Step 6: Final answer
    x = 2,865.10

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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.