Home / 1,655.52-2,279.61-1,619.07

Finding the Fourth Proportional to 1,655.52, 2,279.61 and 1,619.07

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Solution

The fourth proportional to 1,655.52, 2,279.61 and 1,619.07 is: 2,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.52 : 2,279.61 = 1,619.07 : x
  2. Step 2: Convert to fraction form
    1,655.52/2,279.61 = 1,619.07/x
  3. Step 3: Cross multiply
    1,655.52x = 2,279.61 × 1,619.07
  4. Step 4: Simplify right side
    1,655.52x = 3,690,848.16
  5. Step 5: Solve for x
    x = 3,690,848.16/1,655.52
  6. Step 6: Final answer
    x = 2,229.42

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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.