Home / 3,510.68-5,264.60-1,318.21

Finding the Fourth Proportional to 3,510.68, 5,264.60 and 1,318.21

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Solution

The fourth proportional to 3,510.68, 5,264.60 and 1,318.21 is: 1,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.68 : 5,264.60 = 1,318.21 : x
  2. Step 2: Convert to fraction form
    3,510.68/5,264.60 = 1,318.21/x
  3. Step 3: Cross multiply
    3,510.68x = 5,264.60 × 1,318.21
  4. Step 4: Simplify right side
    3,510.68x = 6,939,828.61
  5. Step 5: Solve for x
    x = 6,939,828.61/3,510.68
  6. Step 6: Final answer
    x = 1,976.78

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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.