Home / 7,280.88-10,913.28-3,771.15

Finding the Fourth Proportional to 7,280.88, 10,913.28 and 3,771.15

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Solution

The fourth proportional to 7,280.88, 10,913.28 and 3,771.15 is: 5,652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.88 : 10,913.28 = 3,771.15 : x
  2. Step 2: Convert to fraction form
    7,280.88/10,913.28 = 3,771.15/x
  3. Step 3: Cross multiply
    7,280.88x = 10,913.28 × 3,771.15
  4. Step 4: Simplify right side
    7,280.88x = 41,155,615.87
  5. Step 5: Solve for x
    x = 41,155,615.87/7,280.88
  6. Step 6: Final answer
    x = 5,652.56

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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.