Home / 3,119.12-4,303.92-2,001.08

Finding the Fourth Proportional to 3,119.12, 4,303.92 and 2,001.08

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Solution

The fourth proportional to 3,119.12, 4,303.92 and 2,001.08 is: 2,761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.12 : 4,303.92 = 2,001.08 : x
  2. Step 2: Convert to fraction form
    3,119.12/4,303.92 = 2,001.08/x
  3. Step 3: Cross multiply
    3,119.12x = 4,303.92 × 2,001.08
  4. Step 4: Simplify right side
    3,119.12x = 8,612,488.23
  5. Step 5: Solve for x
    x = 8,612,488.23/3,119.12
  6. Step 6: Final answer
    x = 2,761.19

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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.