Home / 5,517.06-7,611.63-3,528.78

Finding the Fourth Proportional to 5,517.06, 7,611.63 and 3,528.78

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Solution

The fourth proportional to 5,517.06, 7,611.63 and 3,528.78 is: 4,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.06 : 7,611.63 = 3,528.78 : x
  2. Step 2: Convert to fraction form
    5,517.06/7,611.63 = 3,528.78/x
  3. Step 3: Cross multiply
    5,517.06x = 7,611.63 × 3,528.78
  4. Step 4: Simplify right side
    5,517.06x = 26,859,767.71
  5. Step 5: Solve for x
    x = 26,859,767.71/5,517.06
  6. Step 6: Final answer
    x = 4,868.49

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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.