Home / 3,116.60-4,300.94-1,719.48

Finding the Fourth Proportional to 3,116.60, 4,300.94 and 1,719.48

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Solution

The fourth proportional to 3,116.60, 4,300.94 and 1,719.48 is: 2,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.60 : 4,300.94 = 1,719.48 : x
  2. Step 2: Convert to fraction form
    3,116.60/4,300.94 = 1,719.48/x
  3. Step 3: Cross multiply
    3,116.60x = 4,300.94 × 1,719.48
  4. Step 4: Simplify right side
    3,116.60x = 7,395,380.31
  5. Step 5: Solve for x
    x = 7,395,380.31/3,116.60
  6. Step 6: Final answer
    x = 2,372.90

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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.