Home / 3,318.03-4,973.92-1,125.20

Finding the Fourth Proportional to 3,318.03, 4,973.92 and 1,125.20

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Solution

The fourth proportional to 3,318.03, 4,973.92 and 1,125.20 is: 1,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.03 : 4,973.92 = 1,125.20 : x
  2. Step 2: Convert to fraction form
    3,318.03/4,973.92 = 1,125.20/x
  3. Step 3: Cross multiply
    3,318.03x = 4,973.92 × 1,125.20
  4. Step 4: Simplify right side
    3,318.03x = 5,596,624.29
  5. Step 5: Solve for x
    x = 5,596,624.29/3,318.03
  6. Step 6: Final answer
    x = 1,686.73

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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.