Home / 3,981.71-5,495.46-2,302.85

Finding the Fourth Proportional to 3,981.71, 5,495.46 and 2,302.85

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Solution

The fourth proportional to 3,981.71, 5,495.46 and 2,302.85 is: 3,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.71 : 5,495.46 = 2,302.85 : x
  2. Step 2: Convert to fraction form
    3,981.71/5,495.46 = 2,302.85/x
  3. Step 3: Cross multiply
    3,981.71x = 5,495.46 × 2,302.85
  4. Step 4: Simplify right side
    3,981.71x = 12,655,220.06
  5. Step 5: Solve for x
    x = 12,655,220.06/3,981.71
  6. Step 6: Final answer
    x = 3,178.34

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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.