Home / 5,515.78-8,263.24-4,277.12

Finding the Fourth Proportional to 5,515.78, 8,263.24 and 4,277.12

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Solution

The fourth proportional to 5,515.78, 8,263.24 and 4,277.12 is: 6,407.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.78 : 8,263.24 = 4,277.12 : x
  2. Step 2: Convert to fraction form
    5,515.78/8,263.24 = 4,277.12/x
  3. Step 3: Cross multiply
    5,515.78x = 8,263.24 × 4,277.12
  4. Step 4: Simplify right side
    5,515.78x = 35,342,869.07
  5. Step 5: Solve for x
    x = 35,342,869.07/5,515.78
  6. Step 6: Final answer
    x = 6,407.59

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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.