Home / 1,349.84-2,016.37-1,131.14

Finding the Fourth Proportional to 1,349.84, 2,016.37 and 1,131.14

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Solution

The fourth proportional to 1,349.84, 2,016.37 and 1,131.14 is: 1,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.84 : 2,016.37 = 1,131.14 : x
  2. Step 2: Convert to fraction form
    1,349.84/2,016.37 = 1,131.14/x
  3. Step 3: Cross multiply
    1,349.84x = 2,016.37 × 1,131.14
  4. Step 4: Simplify right side
    1,349.84x = 2,280,796.76
  5. Step 5: Solve for x
    x = 2,280,796.76/1,349.84
  6. Step 6: Final answer
    x = 1,689.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.