Home / 5,280.17-7,921.59-1,993.29

Finding the Fourth Proportional to 5,280.17, 7,921.59 and 1,993.29

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Solution

The fourth proportional to 5,280.17, 7,921.59 and 1,993.29 is: 2,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.17 : 7,921.59 = 1,993.29 : x
  2. Step 2: Convert to fraction form
    5,280.17/7,921.59 = 1,993.29/x
  3. Step 3: Cross multiply
    5,280.17x = 7,921.59 × 1,993.29
  4. Step 4: Simplify right side
    5,280.17x = 15,790,026.13
  5. Step 5: Solve for x
    x = 15,790,026.13/5,280.17
  6. Step 6: Final answer
    x = 2,990.44

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1.5x scale

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.