Home / 7,638.73-11,461.97-3,478.17

Finding the Fourth Proportional to 7,638.73, 11,461.97 and 3,478.17

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Solution

The fourth proportional to 7,638.73, 11,461.97 and 3,478.17 is: 5,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.73 : 11,461.97 = 3,478.17 : x
  2. Step 2: Convert to fraction form
    7,638.73/11,461.97 = 3,478.17/x
  3. Step 3: Cross multiply
    7,638.73x = 11,461.97 × 3,478.17
  4. Step 4: Simplify right side
    7,638.73x = 39,866,680.19
  5. Step 5: Solve for x
    x = 39,866,680.19/7,638.73
  6. Step 6: Final answer
    x = 5,219.02

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1.5x scale

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.