Home / 2,218.20-3,062.10-1,432.63

Finding the Fourth Proportional to 2,218.20, 3,062.10 and 1,432.63

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Solution

The fourth proportional to 2,218.20, 3,062.10 and 1,432.63 is: 1,977.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.20 : 3,062.10 = 1,432.63 : x
  2. Step 2: Convert to fraction form
    2,218.20/3,062.10 = 1,432.63/x
  3. Step 3: Cross multiply
    2,218.20x = 3,062.10 × 1,432.63
  4. Step 4: Simplify right side
    2,218.20x = 4,386,856.32
  5. Step 5: Solve for x
    x = 4,386,856.32/2,218.20
  6. Step 6: Final answer
    x = 1,977.66

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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.