Home / 7,318.32-10,099.20-3,961.05

Finding the Fourth Proportional to 7,318.32, 10,099.20 and 3,961.05

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Solution

The fourth proportional to 7,318.32, 10,099.20 and 3,961.05 is: 5,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.32 : 10,099.20 = 3,961.05 : x
  2. Step 2: Convert to fraction form
    7,318.32/10,099.20 = 3,961.05/x
  3. Step 3: Cross multiply
    7,318.32x = 10,099.20 × 3,961.05
  4. Step 4: Simplify right side
    7,318.32x = 40,003,436.16
  5. Step 5: Solve for x
    x = 40,003,436.16/7,318.32
  6. Step 6: Final answer
    x = 5,466.20

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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.