Home / 5,282.18-7,922.85-1,386.48

Finding the Fourth Proportional to 5,282.18, 7,922.85 and 1,386.48

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Solution

The fourth proportional to 5,282.18, 7,922.85 and 1,386.48 is: 2,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.18 : 7,922.85 = 1,386.48 : x
  2. Step 2: Convert to fraction form
    5,282.18/7,922.85 = 1,386.48/x
  3. Step 3: Cross multiply
    5,282.18x = 7,922.85 × 1,386.48
  4. Step 4: Simplify right side
    5,282.18x = 10,984,873.07
  5. Step 5: Solve for x
    x = 10,984,873.07/5,282.18
  6. Step 6: Final answer
    x = 2,079.61

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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.