Home / 3,510.18-5,265.54-1,318.86

Finding the Fourth Proportional to 3,510.18, 5,265.54 and 1,318.86

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Solution

The fourth proportional to 3,510.18, 5,265.54 and 1,318.86 is: 1,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.18 : 5,265.54 = 1,318.86 : x
  2. Step 2: Convert to fraction form
    3,510.18/5,265.54 = 1,318.86/x
  3. Step 3: Cross multiply
    3,510.18x = 5,265.54 × 1,318.86
  4. Step 4: Simplify right side
    3,510.18x = 6,944,510.08
  5. Step 5: Solve for x
    x = 6,944,510.08/3,510.18
  6. Step 6: Final answer
    x = 1,978.39

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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.