Home / 2,872.02-4,309.41-2,143.02

Finding the Fourth Proportional to 2,872.02, 4,309.41 and 2,143.02

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Solution

The fourth proportional to 2,872.02, 4,309.41 and 2,143.02 is: 3,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.02 : 4,309.41 = 2,143.02 : x
  2. Step 2: Convert to fraction form
    2,872.02/4,309.41 = 2,143.02/x
  3. Step 3: Cross multiply
    2,872.02x = 4,309.41 × 2,143.02
  4. Step 4: Simplify right side
    2,872.02x = 9,235,151.82
  5. Step 5: Solve for x
    x = 9,235,151.82/2,872.02
  6. Step 6: Final answer
    x = 3,215.56

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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.