Home / 5,255.42-7,886.43-4,762.80

Finding the Fourth Proportional to 5,255.42, 7,886.43 and 4,762.80

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Solution

The fourth proportional to 5,255.42, 7,886.43 and 4,762.80 is: 7,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.42 : 7,886.43 = 4,762.80 : x
  2. Step 2: Convert to fraction form
    5,255.42/7,886.43 = 4,762.80/x
  3. Step 3: Cross multiply
    5,255.42x = 7,886.43 × 4,762.80
  4. Step 4: Simplify right side
    5,255.42x = 37,561,488.80
  5. Step 5: Solve for x
    x = 37,561,488.80/5,255.42
  6. Step 6: Final answer
    x = 7,147.20

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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.