Home / 3,140.12-4,333.96-2,077.91

Finding the Fourth Proportional to 3,140.12, 4,333.96 and 2,077.91

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Solution

The fourth proportional to 3,140.12, 4,333.96 and 2,077.91 is: 2,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.12 : 4,333.96 = 2,077.91 : x
  2. Step 2: Convert to fraction form
    3,140.12/4,333.96 = 2,077.91/x
  3. Step 3: Cross multiply
    3,140.12x = 4,333.96 × 2,077.91
  4. Step 4: Simplify right side
    3,140.12x = 9,005,557.15
  5. Step 5: Solve for x
    x = 9,005,557.15/3,140.12
  6. Step 6: Final answer
    x = 2,867.90

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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.