Home / 3,691.36-5,538.66-2,868.40

Finding the Fourth Proportional to 3,691.36, 5,538.66 and 2,868.40

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Solution

The fourth proportional to 3,691.36, 5,538.66 and 2,868.40 is: 4,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.36 : 5,538.66 = 2,868.40 : x
  2. Step 2: Convert to fraction form
    3,691.36/5,538.66 = 2,868.40/x
  3. Step 3: Cross multiply
    3,691.36x = 5,538.66 × 2,868.40
  4. Step 4: Simplify right side
    3,691.36x = 15,887,092.34
  5. Step 5: Solve for x
    x = 15,887,092.34/3,691.36
  6. Step 6: Final answer
    x = 4,303.86

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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.