Home / 3,019.20-4,528.80-2,750.40

Finding the Fourth Proportional to 3,019.20, 4,528.80 and 2,750.40

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Solution

The fourth proportional to 3,019.20, 4,528.80 and 2,750.40 is: 4,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.20 : 4,528.80 = 2,750.40 : x
  2. Step 2: Convert to fraction form
    3,019.20/4,528.80 = 2,750.40/x
  3. Step 3: Cross multiply
    3,019.20x = 4,528.80 × 2,750.40
  4. Step 4: Simplify right side
    3,019.20x = 12,456,011.52
  5. Step 5: Solve for x
    x = 12,456,011.52/3,019.20
  6. Step 6: Final answer
    x = 4,125.60

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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.