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Finding the Fourth Proportional to 4,750.80, 6,556.80 and 2,862.48

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Solution

The fourth proportional to 4,750.80, 6,556.80 and 2,862.48 is: 3,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.80 : 6,556.80 = 2,862.48 : x
  2. Step 2: Convert to fraction form
    4,750.80/6,556.80 = 2,862.48/x
  3. Step 3: Cross multiply
    4,750.80x = 6,556.80 × 2,862.48
  4. Step 4: Simplify right side
    4,750.80x = 18,768,708.86
  5. Step 5: Solve for x
    x = 18,768,708.86/4,750.80
  6. Step 6: Final answer
    x = 3,950.64

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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.