Home / 6,987.08-10,478.39-2,306.22

Finding the Fourth Proportional to 6,987.08, 10,478.39 and 2,306.22

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Solution

The fourth proportional to 6,987.08, 10,478.39 and 2,306.22 is: 3,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.08 : 10,478.39 = 2,306.22 : x
  2. Step 2: Convert to fraction form
    6,987.08/10,478.39 = 2,306.22/x
  3. Step 3: Cross multiply
    6,987.08x = 10,478.39 × 2,306.22
  4. Step 4: Simplify right side
    6,987.08x = 24,165,408.66
  5. Step 5: Solve for x
    x = 24,165,408.66/6,987.08
  6. Step 6: Final answer
    x = 3,458.59

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1.5x scale

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.