Home / 5,421.12-7,480.64-3,063.44

Finding the Fourth Proportional to 5,421.12, 7,480.64 and 3,063.44

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Solution

The fourth proportional to 5,421.12, 7,480.64 and 3,063.44 is: 4,227.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.12 : 7,480.64 = 3,063.44 : x
  2. Step 2: Convert to fraction form
    5,421.12/7,480.64 = 3,063.44/x
  3. Step 3: Cross multiply
    5,421.12x = 7,480.64 × 3,063.44
  4. Step 4: Simplify right side
    5,421.12x = 22,916,491.80
  5. Step 5: Solve for x
    x = 22,916,491.80/5,421.12
  6. Step 6: Final answer
    x = 4,227.26

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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.