Home / 3,510.30-5,265.20-1,318.86

Finding the Fourth Proportional to 3,510.30, 5,265.20 and 1,318.86

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Solution

The fourth proportional to 3,510.30, 5,265.20 and 1,318.86 is: 1,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.30 : 5,265.20 = 1,318.86 : x
  2. Step 2: Convert to fraction form
    3,510.30/5,265.20 = 1,318.86/x
  3. Step 3: Cross multiply
    3,510.30x = 5,265.20 × 1,318.86
  4. Step 4: Simplify right side
    3,510.30x = 6,944,061.67
  5. Step 5: Solve for x
    x = 6,944,061.67/3,510.30
  6. Step 6: Final answer
    x = 1,978.20

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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.