Home / 2,197.16-3,031-1,358.36

Finding the Fourth Proportional to 2,197.16, 3,031 and 1,358.36

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Solution

The fourth proportional to 2,197.16, 3,031 and 1,358.36 is: 1,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.16 : 3,031 = 1,358.36 : x
  2. Step 2: Convert to fraction form
    2,197.16/3,031 = 1,358.36/x
  3. Step 3: Cross multiply
    2,197.16x = 3,031 × 1,358.36
  4. Step 4: Simplify right side
    2,197.16x = 4,117,189.16
  5. Step 5: Solve for x
    x = 4,117,189.16/2,197.16
  6. Step 6: Final answer
    x = 1,873.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.