Home / 3,390.36-5,085.87-1,168.88

Finding the Fourth Proportional to 3,390.36, 5,085.87 and 1,168.88

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Solution

The fourth proportional to 3,390.36, 5,085.87 and 1,168.88 is: 1,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.36 : 5,085.87 = 1,168.88 : x
  2. Step 2: Convert to fraction form
    3,390.36/5,085.87 = 1,168.88/x
  3. Step 3: Cross multiply
    3,390.36x = 5,085.87 × 1,168.88
  4. Step 4: Simplify right side
    3,390.36x = 5,944,777.10
  5. Step 5: Solve for x
    x = 5,944,777.10/3,390.36
  6. Step 6: Final answer
    x = 1,753.44

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1.5x scale

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.