Home / 3,116.38-4,300.60-1,719.12

Finding the Fourth Proportional to 3,116.38, 4,300.60 and 1,719.12

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Solution

The fourth proportional to 3,116.38, 4,300.60 and 1,719.12 is: 2,372.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.38 : 4,300.60 = 1,719.12 : x
  2. Step 2: Convert to fraction form
    3,116.38/4,300.60 = 1,719.12/x
  3. Step 3: Cross multiply
    3,116.38x = 4,300.60 × 1,719.12
  4. Step 4: Simplify right side
    3,116.38x = 7,393,247.47
  5. Step 5: Solve for x
    x = 7,393,247.47/3,116.38
  6. Step 6: Final answer
    x = 2,372.38

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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.