Home / 5,515.68-8,265.60-4,277.28

Finding the Fourth Proportional to 5,515.68, 8,265.60 and 4,277.28

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Solution

The fourth proportional to 5,515.68, 8,265.60 and 4,277.28 is: 6,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.68 : 8,265.60 = 4,277.28 : x
  2. Step 2: Convert to fraction form
    5,515.68/8,265.60 = 4,277.28/x
  3. Step 3: Cross multiply
    5,515.68x = 8,265.60 × 4,277.28
  4. Step 4: Simplify right side
    5,515.68x = 35,354,285.57
  5. Step 5: Solve for x
    x = 35,354,285.57/5,515.68
  6. Step 6: Final answer
    x = 6,409.78

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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.