Home / 7,318.55-10,099.60-3,961.40

Finding the Fourth Proportional to 7,318.55, 10,099.60 and 3,961.40

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Solution

The fourth proportional to 7,318.55, 10,099.60 and 3,961.40 is: 5,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.55 : 10,099.60 = 3,961.40 : x
  2. Step 2: Convert to fraction form
    7,318.55/10,099.60 = 3,961.40/x
  3. Step 3: Cross multiply
    7,318.55x = 10,099.60 × 3,961.40
  4. Step 4: Simplify right side
    7,318.55x = 40,008,495.04
  5. Step 5: Solve for x
    x = 40,008,495.04/7,318.55
  6. Step 6: Final answer
    x = 5,466.72

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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.