Home / 2,721.70-4,082.55-2,260.40

Finding the Fourth Proportional to 2,721.70, 4,082.55 and 2,260.40

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Solution

The fourth proportional to 2,721.70, 4,082.55 and 2,260.40 is: 3,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.70 : 4,082.55 = 2,260.40 : x
  2. Step 2: Convert to fraction form
    2,721.70/4,082.55 = 2,260.40/x
  3. Step 3: Cross multiply
    2,721.70x = 4,082.55 × 2,260.40
  4. Step 4: Simplify right side
    2,721.70x = 9,228,196.02
  5. Step 5: Solve for x
    x = 9,228,196.02/2,721.70
  6. Step 6: Final answer
    x = 3,390.60

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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.