Home / 4,212.78-6,275.02-3,999.55

Finding the Fourth Proportional to 4,212.78, 6,275.02 and 3,999.55

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Solution

The fourth proportional to 4,212.78, 6,275.02 and 3,999.55 is: 5,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.78 : 6,275.02 = 3,999.55 : x
  2. Step 2: Convert to fraction form
    4,212.78/6,275.02 = 3,999.55/x
  3. Step 3: Cross multiply
    4,212.78x = 6,275.02 × 3,999.55
  4. Step 4: Simplify right side
    4,212.78x = 25,097,267.47
  5. Step 5: Solve for x
    x = 25,097,267.47/4,212.78
  6. Step 6: Final answer
    x = 5,957.41

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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.