Home / 1,140.11-1,716.80-967.38

Finding the Fourth Proportional to 1,140.11, 1,716.80 and 967.38

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Solution

The fourth proportional to 1,140.11, 1,716.80 and 967.38 is: 1,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.11 : 1,716.80 = 967.38 : x
  2. Step 2: Convert to fraction form
    1,140.11/1,716.80 = 967.38/x
  3. Step 3: Cross multiply
    1,140.11x = 1,716.80 × 967.38
  4. Step 4: Simplify right side
    1,140.11x = 1,660,786.71
  5. Step 5: Solve for x
    x = 1,660,786.71/1,140.11
  6. Step 6: Final answer
    x = 1,456.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.