Home / 1,663.28-2,494.91-1,298.37

Finding the Fourth Proportional to 1,663.28, 2,494.91 and 1,298.37

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Solution

The fourth proportional to 1,663.28, 2,494.91 and 1,298.37 is: 1,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.28 : 2,494.91 = 1,298.37 : x
  2. Step 2: Convert to fraction form
    1,663.28/2,494.91 = 1,298.37/x
  3. Step 3: Cross multiply
    1,663.28x = 2,494.91 × 1,298.37
  4. Step 4: Simplify right side
    1,663.28x = 3,239,309.80
  5. Step 5: Solve for x
    x = 3,239,309.80/1,663.28
  6. Step 6: Final answer
    x = 1,947.55

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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.