Home / 2,186.10-3,275.55-1,818.90

Finding the Fourth Proportional to 2,186.10, 3,275.55 and 1,818.90

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Solution

The fourth proportional to 2,186.10, 3,275.55 and 1,818.90 is: 2,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.10 : 3,275.55 = 1,818.90 : x
  2. Step 2: Convert to fraction form
    2,186.10/3,275.55 = 1,818.90/x
  3. Step 3: Cross multiply
    2,186.10x = 3,275.55 × 1,818.90
  4. Step 4: Simplify right side
    2,186.10x = 5,957,897.90
  5. Step 5: Solve for x
    x = 5,957,897.90/2,186.10
  6. Step 6: Final answer
    x = 2,725.35

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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.