Home / 2,280.20-3,145.56-1,964.92

Finding the Fourth Proportional to 2,280.20, 3,145.56 and 1,964.92

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Solution

The fourth proportional to 2,280.20, 3,145.56 and 1,964.92 is: 2,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.20 : 3,145.56 = 1,964.92 : x
  2. Step 2: Convert to fraction form
    2,280.20/3,145.56 = 1,964.92/x
  3. Step 3: Cross multiply
    2,280.20x = 3,145.56 × 1,964.92
  4. Step 4: Simplify right side
    2,280.20x = 6,180,773.76
  5. Step 5: Solve for x
    x = 6,180,773.76/2,280.20
  6. Step 6: Final answer
    x = 2,710.63

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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.