Home / 1,135.14-1,562.91-1,031.33

Finding the Fourth Proportional to 1,135.14, 1,562.91 and 1,031.33

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Solution

The fourth proportional to 1,135.14, 1,562.91 and 1,031.33 is: 1,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.14 : 1,562.91 = 1,031.33 : x
  2. Step 2: Convert to fraction form
    1,135.14/1,562.91 = 1,031.33/x
  3. Step 3: Cross multiply
    1,135.14x = 1,562.91 × 1,031.33
  4. Step 4: Simplify right side
    1,135.14x = 1,611,875.97
  5. Step 5: Solve for x
    x = 1,611,875.97/1,135.14
  6. Step 6: Final answer
    x = 1,419.98

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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.