Home / 2,659.44-3,988.56-1,015.40

Finding the Fourth Proportional to 2,659.44, 3,988.56 and 1,015.40

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Solution

The fourth proportional to 2,659.44, 3,988.56 and 1,015.40 is: 1,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.44 : 3,988.56 = 1,015.40 : x
  2. Step 2: Convert to fraction form
    2,659.44/3,988.56 = 1,015.40/x
  3. Step 3: Cross multiply
    2,659.44x = 3,988.56 × 1,015.40
  4. Step 4: Simplify right side
    2,659.44x = 4,049,983.82
  5. Step 5: Solve for x
    x = 4,049,983.82/2,659.44
  6. Step 6: Final answer
    x = 1,522.87

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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.