Home / 2,197.15-3,031.04-1,357.18

Finding the Fourth Proportional to 2,197.15, 3,031.04 and 1,357.18

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Solution

The fourth proportional to 2,197.15, 3,031.04 and 1,357.18 is: 1,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.15 : 3,031.04 = 1,357.18 : x
  2. Step 2: Convert to fraction form
    2,197.15/3,031.04 = 1,357.18/x
  3. Step 3: Cross multiply
    2,197.15x = 3,031.04 × 1,357.18
  4. Step 4: Simplify right side
    2,197.15x = 4,113,662.68
  5. Step 5: Solve for x
    x = 4,113,662.68/2,197.15
  6. Step 6: Final answer
    x = 1,872.27

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1.5x scale

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.