Home / 5,715.30-7,887.84-3,197.55

Finding the Fourth Proportional to 5,715.30, 7,887.84 and 3,197.55

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Solution

The fourth proportional to 5,715.30, 7,887.84 and 3,197.55 is: 4,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.30 : 7,887.84 = 3,197.55 : x
  2. Step 2: Convert to fraction form
    5,715.30/7,887.84 = 3,197.55/x
  3. Step 3: Cross multiply
    5,715.30x = 7,887.84 × 3,197.55
  4. Step 4: Simplify right side
    5,715.30x = 25,221,762.79
  5. Step 5: Solve for x
    x = 25,221,762.79/5,715.30
  6. Step 6: Final answer
    x = 4,413.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.