Home / 3,423.06-4,715.82-2,831.76

Finding the Fourth Proportional to 3,423.06, 4,715.82 and 2,831.76

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Solution

The fourth proportional to 3,423.06, 4,715.82 and 2,831.76 is: 3,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.06 : 4,715.82 = 2,831.76 : x
  2. Step 2: Convert to fraction form
    3,423.06/4,715.82 = 2,831.76/x
  3. Step 3: Cross multiply
    3,423.06x = 4,715.82 × 2,831.76
  4. Step 4: Simplify right side
    3,423.06x = 13,354,070.44
  5. Step 5: Solve for x
    x = 13,354,070.44/3,423.06
  6. Step 6: Final answer
    x = 3,901.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.