Home / 3,062.24-4,219.80-2,129.12

Finding the Fourth Proportional to 3,062.24, 4,219.80 and 2,129.12

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Solution

The fourth proportional to 3,062.24, 4,219.80 and 2,129.12 is: 2,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.24 : 4,219.80 = 2,129.12 : x
  2. Step 2: Convert to fraction form
    3,062.24/4,219.80 = 2,129.12/x
  3. Step 3: Cross multiply
    3,062.24x = 4,219.80 × 2,129.12
  4. Step 4: Simplify right side
    3,062.24x = 8,984,460.58
  5. Step 5: Solve for x
    x = 8,984,460.58/3,062.24
  6. Step 6: Final answer
    x = 2,933.95

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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.