Home / 4,215.20-6,273.52-4,020.80

Finding the Fourth Proportional to 4,215.20, 6,273.52 and 4,020.80

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Solution

The fourth proportional to 4,215.20, 6,273.52 and 4,020.80 is: 5,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.20 : 6,273.52 = 4,020.80 : x
  2. Step 2: Convert to fraction form
    4,215.20/6,273.52 = 4,020.80/x
  3. Step 3: Cross multiply
    4,215.20x = 6,273.52 × 4,020.80
  4. Step 4: Simplify right side
    4,215.20x = 25,224,569.22
  5. Step 5: Solve for x
    x = 25,224,569.22/4,215.20
  6. Step 6: Final answer
    x = 5,984.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.