Home / 3,023.20-4,531.20-1,561.60

Finding the Fourth Proportional to 3,023.20, 4,531.20 and 1,561.60

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Solution

The fourth proportional to 3,023.20, 4,531.20 and 1,561.60 is: 2,340.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,023.20 : 4,531.20 = 1,561.60 : x
  2. Step 2: Convert to fraction form
    3,023.20/4,531.20 = 1,561.60/x
  3. Step 3: Cross multiply
    3,023.20x = 4,531.20 × 1,561.60
  4. Step 4: Simplify right side
    3,023.20x = 7,075,921.92
  5. Step 5: Solve for x
    x = 7,075,921.92/3,023.20
  6. Step 6: Final answer
    x = 2,340.54

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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.