Home / 5,159.26-7,121.47-3,034.70

Finding the Fourth Proportional to 5,159.26, 7,121.47 and 3,034.70

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Solution

The fourth proportional to 5,159.26, 7,121.47 and 3,034.70 is: 4,188.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.26 : 7,121.47 = 3,034.70 : x
  2. Step 2: Convert to fraction form
    5,159.26/7,121.47 = 3,034.70/x
  3. Step 3: Cross multiply
    5,159.26x = 7,121.47 × 3,034.70
  4. Step 4: Simplify right side
    5,159.26x = 21,611,525.01
  5. Step 5: Solve for x
    x = 21,611,525.01/5,159.26
  6. Step 6: Final answer
    x = 4,188.88

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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.