Home / 3,148.45-4,723.69-1,505.12

Finding the Fourth Proportional to 3,148.45, 4,723.69 and 1,505.12

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Solution

The fourth proportional to 3,148.45, 4,723.69 and 1,505.12 is: 2,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.45 : 4,723.69 = 1,505.12 : x
  2. Step 2: Convert to fraction form
    3,148.45/4,723.69 = 1,505.12/x
  3. Step 3: Cross multiply
    3,148.45x = 4,723.69 × 1,505.12
  4. Step 4: Simplify right side
    3,148.45x = 7,109,696.67
  5. Step 5: Solve for x
    x = 7,109,696.67/3,148.45
  6. Step 6: Final answer
    x = 2,258.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.