Home / 3,391.71-5,084.45-1,313.10

Finding the Fourth Proportional to 3,391.71, 5,084.45 and 1,313.10

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Solution

The fourth proportional to 3,391.71, 5,084.45 and 1,313.10 is: 1,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.71 : 5,084.45 = 1,313.10 : x
  2. Step 2: Convert to fraction form
    3,391.71/5,084.45 = 1,313.10/x
  3. Step 3: Cross multiply
    3,391.71x = 5,084.45 × 1,313.10
  4. Step 4: Simplify right side
    3,391.71x = 6,676,391.30
  5. Step 5: Solve for x
    x = 6,676,391.30/3,391.71
  6. Step 6: Final answer
    x = 1,968.44

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1.5x scale

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.