Home / 1,454.80-2,182.20-1,236.10

Finding the Fourth Proportional to 1,454.80, 2,182.20 and 1,236.10

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Solution

The fourth proportional to 1,454.80, 2,182.20 and 1,236.10 is: 1,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.80 : 2,182.20 = 1,236.10 : x
  2. Step 2: Convert to fraction form
    1,454.80/2,182.20 = 1,236.10/x
  3. Step 3: Cross multiply
    1,454.80x = 2,182.20 × 1,236.10
  4. Step 4: Simplify right side
    1,454.80x = 2,697,417.42
  5. Step 5: Solve for x
    x = 2,697,417.42/1,454.80
  6. Step 6: Final answer
    x = 1,854.15

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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.