Home / 2,245.41-3,098.12-1,313.91

Finding the Fourth Proportional to 2,245.41, 3,098.12 and 1,313.91

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Solution

The fourth proportional to 2,245.41, 3,098.12 and 1,313.91 is: 1,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.41 : 3,098.12 = 1,313.91 : x
  2. Step 2: Convert to fraction form
    2,245.41/3,098.12 = 1,313.91/x
  3. Step 3: Cross multiply
    2,245.41x = 3,098.12 × 1,313.91
  4. Step 4: Simplify right side
    2,245.41x = 4,070,644.28
  5. Step 5: Solve for x
    x = 4,070,644.28/2,245.41
  6. Step 6: Final answer
    x = 1,812.87

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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.