Home / 1,115.31-1,529.14-1,095.55

Finding the Fourth Proportional to 1,115.31, 1,529.14 and 1,095.55

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Solution

The fourth proportional to 1,115.31, 1,529.14 and 1,095.55 is: 1,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115.31 : 1,529.14 = 1,095.55 : x
  2. Step 2: Convert to fraction form
    1,115.31/1,529.14 = 1,095.55/x
  3. Step 3: Cross multiply
    1,115.31x = 1,529.14 × 1,095.55
  4. Step 4: Simplify right side
    1,115.31x = 1,675,249.33
  5. Step 5: Solve for x
    x = 1,675,249.33/1,115.31
  6. Step 6: Final answer
    x = 1,502.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.