Home / 4,751.20-7,119.60-3,210.40

Finding the Fourth Proportional to 4,751.20, 7,119.60 and 3,210.40

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Solution

The fourth proportional to 4,751.20, 7,119.60 and 3,210.40 is: 4,810.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.20 : 7,119.60 = 3,210.40 : x
  2. Step 2: Convert to fraction form
    4,751.20/7,119.60 = 3,210.40/x
  3. Step 3: Cross multiply
    4,751.20x = 7,119.60 × 3,210.40
  4. Step 4: Simplify right side
    4,751.20x = 22,856,763.84
  5. Step 5: Solve for x
    x = 22,856,763.84/4,751.20
  6. Step 6: Final answer
    x = 4,810.73

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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.