Home / 5,938.20-8,900.10-2,647.80

Finding the Fourth Proportional to 5,938.20, 8,900.10 and 2,647.80

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Solution

The fourth proportional to 5,938.20, 8,900.10 and 2,647.80 is: 3,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.20 : 8,900.10 = 2,647.80 : x
  2. Step 2: Convert to fraction form
    5,938.20/8,900.10 = 2,647.80/x
  3. Step 3: Cross multiply
    5,938.20x = 8,900.10 × 2,647.80
  4. Step 4: Simplify right side
    5,938.20x = 23,565,684.78
  5. Step 5: Solve for x
    x = 23,565,684.78/5,938.20
  6. Step 6: Final answer
    x = 3,968.49

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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.