Home / 5,421.40-7,480.61-3,063.49

Finding the Fourth Proportional to 5,421.40, 7,480.61 and 3,063.49

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Solution

The fourth proportional to 5,421.40, 7,480.61 and 3,063.49 is: 4,227.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.40 : 7,480.61 = 3,063.49 : x
  2. Step 2: Convert to fraction form
    5,421.40/7,480.61 = 3,063.49/x
  3. Step 3: Cross multiply
    5,421.40x = 7,480.61 × 3,063.49
  4. Step 4: Simplify right side
    5,421.40x = 22,916,758.61
  5. Step 5: Solve for x
    x = 22,916,758.61/5,421.40
  6. Step 6: Final answer
    x = 4,227.09

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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.