Home / 5,279.40-7,926.30-2,684.16

Finding the Fourth Proportional to 5,279.40, 7,926.30 and 2,684.16

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Solution

The fourth proportional to 5,279.40, 7,926.30 and 2,684.16 is: 4,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.40 : 7,926.30 = 2,684.16 : x
  2. Step 2: Convert to fraction form
    5,279.40/7,926.30 = 2,684.16/x
  3. Step 3: Cross multiply
    5,279.40x = 7,926.30 × 2,684.16
  4. Step 4: Simplify right side
    5,279.40x = 21,275,457.41
  5. Step 5: Solve for x
    x = 21,275,457.41/5,279.40
  6. Step 6: Final answer
    x = 4,029.90

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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.