Home / 4,851.20-7,276.80-3,539.20

Finding the Fourth Proportional to 4,851.20, 7,276.80 and 3,539.20

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Solution

The fourth proportional to 4,851.20, 7,276.80 and 3,539.20 is: 5,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,851.20 : 7,276.80 = 3,539.20 : x
  2. Step 2: Convert to fraction form
    4,851.20/7,276.80 = 3,539.20/x
  3. Step 3: Cross multiply
    4,851.20x = 7,276.80 × 3,539.20
  4. Step 4: Simplify right side
    4,851.20x = 25,754,050.56
  5. Step 5: Solve for x
    x = 25,754,050.56/4,851.20
  6. Step 6: Final answer
    x = 5,308.80

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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.