Home / 5,780.56-8,660.76-2,851.60

Finding the Fourth Proportional to 5,780.56, 8,660.76 and 2,851.60

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Solution

The fourth proportional to 5,780.56, 8,660.76 and 2,851.60 is: 4,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.56 : 8,660.76 = 2,851.60 : x
  2. Step 2: Convert to fraction form
    5,780.56/8,660.76 = 2,851.60/x
  3. Step 3: Cross multiply
    5,780.56x = 8,660.76 × 2,851.60
  4. Step 4: Simplify right side
    5,780.56x = 24,697,023.22
  5. Step 5: Solve for x
    x = 24,697,023.22/5,780.56
  6. Step 6: Final answer
    x = 4,272.43

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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.