Home / 2,127.66-3,191.49-1,641.42

Finding the Fourth Proportional to 2,127.66, 3,191.49 and 1,641.42

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Solution

The fourth proportional to 2,127.66, 3,191.49 and 1,641.42 is: 2,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.66 : 3,191.49 = 1,641.42 : x
  2. Step 2: Convert to fraction form
    2,127.66/3,191.49 = 1,641.42/x
  3. Step 3: Cross multiply
    2,127.66x = 3,191.49 × 1,641.42
  4. Step 4: Simplify right side
    2,127.66x = 5,238,575.52
  5. Step 5: Solve for x
    x = 5,238,575.52/2,127.66
  6. Step 6: Final answer
    x = 2,462.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.