Home / 7,541.55-11,307.78-3,380.81

Finding the Fourth Proportional to 7,541.55, 11,307.78 and 3,380.81

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Solution

The fourth proportional to 7,541.55, 11,307.78 and 3,380.81 is: 5,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,541.55 : 11,307.78 = 3,380.81 : x
  2. Step 2: Convert to fraction form
    7,541.55/11,307.78 = 3,380.81/x
  3. Step 3: Cross multiply
    7,541.55x = 11,307.78 × 3,380.81
  4. Step 4: Simplify right side
    7,541.55x = 38,229,399.16
  5. Step 5: Solve for x
    x = 38,229,399.16/7,541.55
  6. Step 6: Final answer
    x = 5,069.17

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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.