Home / 7,217.08-9,959.10-4,072.84

Finding the Fourth Proportional to 7,217.08, 9,959.10 and 4,072.84

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Solution

The fourth proportional to 7,217.08, 9,959.10 and 4,072.84 is: 5,620.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.08 : 9,959.10 = 4,072.84 : x
  2. Step 2: Convert to fraction form
    7,217.08/9,959.10 = 4,072.84/x
  3. Step 3: Cross multiply
    7,217.08x = 9,959.10 × 4,072.84
  4. Step 4: Simplify right side
    7,217.08x = 40,561,820.84
  5. Step 5: Solve for x
    x = 40,561,820.84/7,217.08
  6. Step 6: Final answer
    x = 5,620.25

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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.