Home / 4,812.20-6,641.28-3,020.96

Finding the Fourth Proportional to 4,812.20, 6,641.28 and 3,020.96

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Solution

The fourth proportional to 4,812.20, 6,641.28 and 3,020.96 is: 4,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.20 : 6,641.28 = 3,020.96 : x
  2. Step 2: Convert to fraction form
    4,812.20/6,641.28 = 3,020.96/x
  3. Step 3: Cross multiply
    4,812.20x = 6,641.28 × 3,020.96
  4. Step 4: Simplify right side
    4,812.20x = 20,063,041.23
  5. Step 5: Solve for x
    x = 20,063,041.23/4,812.20
  6. Step 6: Final answer
    x = 4,169.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.