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Finding the Fourth Proportional to 7,242.55, 10,865.88 and 3,735.12

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Solution

The fourth proportional to 7,242.55, 10,865.88 and 3,735.12 is: 5,603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.55 : 10,865.88 = 3,735.12 : x
  2. Step 2: Convert to fraction form
    7,242.55/10,865.88 = 3,735.12/x
  3. Step 3: Cross multiply
    7,242.55x = 10,865.88 × 3,735.12
  4. Step 4: Simplify right side
    7,242.55x = 40,585,365.71
  5. Step 5: Solve for x
    x = 40,585,365.71/7,242.55
  6. Step 6: Final answer
    x = 5,603.74

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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.