Home / 1,663.12-2,291.84-1,102.96

Finding the Fourth Proportional to 1,663.12, 2,291.84 and 1,102.96

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Solution

The fourth proportional to 1,663.12, 2,291.84 and 1,102.96 is: 1,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.12 : 2,291.84 = 1,102.96 : x
  2. Step 2: Convert to fraction form
    1,663.12/2,291.84 = 1,102.96/x
  3. Step 3: Cross multiply
    1,663.12x = 2,291.84 × 1,102.96
  4. Step 4: Simplify right side
    1,663.12x = 2,527,807.85
  5. Step 5: Solve for x
    x = 2,527,807.85/1,663.12
  6. Step 6: Final answer
    x = 1,519.92

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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.