Home / 4,831.40-7,251.17-1,911.75

Finding the Fourth Proportional to 4,831.40, 7,251.17 and 1,911.75

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Solution

The fourth proportional to 4,831.40, 7,251.17 and 1,911.75 is: 2,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.40 : 7,251.17 = 1,911.75 : x
  2. Step 2: Convert to fraction form
    4,831.40/7,251.17 = 1,911.75/x
  3. Step 3: Cross multiply
    4,831.40x = 7,251.17 × 1,911.75
  4. Step 4: Simplify right side
    4,831.40x = 13,862,439.04
  5. Step 5: Solve for x
    x = 13,862,439.04/4,831.40
  6. Step 6: Final answer
    x = 2,869.24

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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.