Home / 1,513.10-2,087.97-1,015.66

Finding the Fourth Proportional to 1,513.10, 2,087.97 and 1,015.66

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Solution

The fourth proportional to 1,513.10, 2,087.97 and 1,015.66 is: 1,401.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.10 : 2,087.97 = 1,015.66 : x
  2. Step 2: Convert to fraction form
    1,513.10/2,087.97 = 1,015.66/x
  3. Step 3: Cross multiply
    1,513.10x = 2,087.97 × 1,015.66
  4. Step 4: Simplify right side
    1,513.10x = 2,120,657.52
  5. Step 5: Solve for x
    x = 2,120,657.52/1,513.10
  6. Step 6: Final answer
    x = 1,401.53

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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.