Home / 2,724.10-4,083.45-1,260.70

Finding the Fourth Proportional to 2,724.10, 4,083.45 and 1,260.70

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Solution

The fourth proportional to 2,724.10, 4,083.45 and 1,260.70 is: 1,889.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.10 : 4,083.45 = 1,260.70 : x
  2. Step 2: Convert to fraction form
    2,724.10/4,083.45 = 1,260.70/x
  3. Step 3: Cross multiply
    2,724.10x = 4,083.45 × 1,260.70
  4. Step 4: Simplify right side
    2,724.10x = 5,148,005.42
  5. Step 5: Solve for x
    x = 5,148,005.42/2,724.10
  6. Step 6: Final answer
    x = 1,889.80

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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.