Home / 5,217.75-7,857.88-4,751.19

Finding the Fourth Proportional to 5,217.75, 7,857.88 and 4,751.19

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Solution

The fourth proportional to 5,217.75, 7,857.88 and 4,751.19 is: 7,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.75 : 7,857.88 = 4,751.19 : x
  2. Step 2: Convert to fraction form
    5,217.75/7,857.88 = 4,751.19/x
  3. Step 3: Cross multiply
    5,217.75x = 7,857.88 × 4,751.19
  4. Step 4: Simplify right side
    5,217.75x = 37,334,269.00
  5. Step 5: Solve for x
    x = 37,334,269.00/5,217.75
  6. Step 6: Final answer
    x = 7,155.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.