Home / 4,613.20-6,920.96-1,326.30

Finding the Fourth Proportional to 4,613.20, 6,920.96 and 1,326.30

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Solution

The fourth proportional to 4,613.20, 6,920.96 and 1,326.30 is: 1,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.20 : 6,920.96 = 1,326.30 : x
  2. Step 2: Convert to fraction form
    4,613.20/6,920.96 = 1,326.30/x
  3. Step 3: Cross multiply
    4,613.20x = 6,920.96 × 1,326.30
  4. Step 4: Simplify right side
    4,613.20x = 9,179,238.19
  5. Step 5: Solve for x
    x = 9,179,238.19/4,613.20
  6. Step 6: Final answer
    x = 1,989.78

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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.