Home / 4,121.47-5,687.70-2,258.47

Finding the Fourth Proportional to 4,121.47, 5,687.70 and 2,258.47

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Solution

The fourth proportional to 4,121.47, 5,687.70 and 2,258.47 is: 3,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.47 : 5,687.70 = 2,258.47 : x
  2. Step 2: Convert to fraction form
    4,121.47/5,687.70 = 2,258.47/x
  3. Step 3: Cross multiply
    4,121.47x = 5,687.70 × 2,258.47
  4. Step 4: Simplify right side
    4,121.47x = 12,845,499.82
  5. Step 5: Solve for x
    x = 12,845,499.82/4,121.47
  6. Step 6: Final answer
    x = 3,116.73

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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.