Home / 2,052.36-3,079.60-1,187.28

Finding the Fourth Proportional to 2,052.36, 3,079.60 and 1,187.28

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Solution

The fourth proportional to 2,052.36, 3,079.60 and 1,187.28 is: 1,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.36 : 3,079.60 = 1,187.28 : x
  2. Step 2: Convert to fraction form
    2,052.36/3,079.60 = 1,187.28/x
  3. Step 3: Cross multiply
    2,052.36x = 3,079.60 × 1,187.28
  4. Step 4: Simplify right side
    2,052.36x = 3,656,347.49
  5. Step 5: Solve for x
    x = 3,656,347.49/2,052.36
  6. Step 6: Final answer
    x = 1,781.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.