Home / 1,131.92-1,560.87-1,106.46

Finding the Fourth Proportional to 1,131.92, 1,560.87 and 1,106.46

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Solution

The fourth proportional to 1,131.92, 1,560.87 and 1,106.46 is: 1,525.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131.92 : 1,560.87 = 1,106.46 : x
  2. Step 2: Convert to fraction form
    1,131.92/1,560.87 = 1,106.46/x
  3. Step 3: Cross multiply
    1,131.92x = 1,560.87 × 1,106.46
  4. Step 4: Simplify right side
    1,131.92x = 1,727,040.22
  5. Step 5: Solve for x
    x = 1,727,040.22/1,131.92
  6. Step 6: Final answer
    x = 1,525.76

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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.