Home / 2,405.60-3,617.30-2,318.12

Finding the Fourth Proportional to 2,405.60, 3,617.30 and 2,318.12

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Solution

The fourth proportional to 2,405.60, 3,617.30 and 2,318.12 is: 3,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.60 : 3,617.30 = 2,318.12 : x
  2. Step 2: Convert to fraction form
    2,405.60/3,617.30 = 2,318.12/x
  3. Step 3: Cross multiply
    2,405.60x = 3,617.30 × 2,318.12
  4. Step 4: Simplify right side
    2,405.60x = 8,385,335.48
  5. Step 5: Solve for x
    x = 8,385,335.48/2,405.60
  6. Step 6: Final answer
    x = 3,485.76

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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.