Home / 5,298.28-7,948.62-2,831.80

Finding the Fourth Proportional to 5,298.28, 7,948.62 and 2,831.80

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Solution

The fourth proportional to 5,298.28, 7,948.62 and 2,831.80 is: 4,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.28 : 7,948.62 = 2,831.80 : x
  2. Step 2: Convert to fraction form
    5,298.28/7,948.62 = 2,831.80/x
  3. Step 3: Cross multiply
    5,298.28x = 7,948.62 × 2,831.80
  4. Step 4: Simplify right side
    5,298.28x = 22,508,902.12
  5. Step 5: Solve for x
    x = 22,508,902.12/5,298.28
  6. Step 6: Final answer
    x = 4,248.34

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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.