Home / 3,045.52-4,191.98-2,159.79

Finding the Fourth Proportional to 3,045.52, 4,191.98 and 2,159.79

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Solution

The fourth proportional to 3,045.52, 4,191.98 and 2,159.79 is: 2,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.52 : 4,191.98 = 2,159.79 : x
  2. Step 2: Convert to fraction form
    3,045.52/4,191.98 = 2,159.79/x
  3. Step 3: Cross multiply
    3,045.52x = 4,191.98 × 2,159.79
  4. Step 4: Simplify right side
    3,045.52x = 9,053,796.48
  5. Step 5: Solve for x
    x = 9,053,796.48/3,045.52
  6. Step 6: Final answer
    x = 2,972.82

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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.