Home / 2,245.12-3,098.88-1,313.92

Finding the Fourth Proportional to 2,245.12, 3,098.88 and 1,313.92

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Solution

The fourth proportional to 2,245.12, 3,098.88 and 1,313.92 is: 1,813.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.12 : 3,098.88 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    2,245.12/3,098.88 = 1,313.92/x
  3. Step 3: Cross multiply
    2,245.12x = 3,098.88 × 1,313.92
  4. Step 4: Simplify right side
    2,245.12x = 4,071,680.41
  5. Step 5: Solve for x
    x = 4,071,680.41/2,245.12
  6. Step 6: Final answer
    x = 1,813.57

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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.