Home / 3,442.12-5,139.86-2,703.40

Finding the Fourth Proportional to 3,442.12, 5,139.86 and 2,703.40

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Solution

The fourth proportional to 3,442.12, 5,139.86 and 2,703.40 is: 4,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.12 : 5,139.86 = 2,703.40 : x
  2. Step 2: Convert to fraction form
    3,442.12/5,139.86 = 2,703.40/x
  3. Step 3: Cross multiply
    3,442.12x = 5,139.86 × 2,703.40
  4. Step 4: Simplify right side
    3,442.12x = 13,895,097.52
  5. Step 5: Solve for x
    x = 13,895,097.52/3,442.12
  6. Step 6: Final answer
    x = 4,036.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.