Home / 5,266.22-7,899.31-2,145.53

Finding the Fourth Proportional to 5,266.22, 7,899.31 and 2,145.53

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Solution

The fourth proportional to 5,266.22, 7,899.31 and 2,145.53 is: 3,218.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.22 : 7,899.31 = 2,145.53 : x
  2. Step 2: Convert to fraction form
    5,266.22/7,899.31 = 2,145.53/x
  3. Step 3: Cross multiply
    5,266.22x = 7,899.31 × 2,145.53
  4. Step 4: Simplify right side
    5,266.22x = 16,948,206.58
  5. Step 5: Solve for x
    x = 16,948,206.58/5,266.22
  6. Step 6: Final answer
    x = 3,218.29

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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.