Home / 2,276.28-3,140.01-1,379.43

Finding the Fourth Proportional to 2,276.28, 3,140.01 and 1,379.43

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Solution

The fourth proportional to 2,276.28, 3,140.01 and 1,379.43 is: 1,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.28 : 3,140.01 = 1,379.43 : x
  2. Step 2: Convert to fraction form
    2,276.28/3,140.01 = 1,379.43/x
  3. Step 3: Cross multiply
    2,276.28x = 3,140.01 × 1,379.43
  4. Step 4: Simplify right side
    2,276.28x = 4,331,423.99
  5. Step 5: Solve for x
    x = 4,331,423.99/2,276.28
  6. Step 6: Final answer
    x = 1,902.85

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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.