Home / 2,245.22-3,098.40-1,313.72

Finding the Fourth Proportional to 2,245.22, 3,098.40 and 1,313.72

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Solution

The fourth proportional to 2,245.22, 3,098.40 and 1,313.72 is: 1,812.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.22 : 3,098.40 = 1,313.72 : x
  2. Step 2: Convert to fraction form
    2,245.22/3,098.40 = 1,313.72/x
  3. Step 3: Cross multiply
    2,245.22x = 3,098.40 × 1,313.72
  4. Step 4: Simplify right side
    2,245.22x = 4,070,428.64
  5. Step 5: Solve for x
    x = 4,070,428.64/2,245.22
  6. Step 6: Final answer
    x = 1,812.93

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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.