Home / 5,522.40-7,620.48-3,426.12

Finding the Fourth Proportional to 5,522.40, 7,620.48 and 3,426.12

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Solution

The fourth proportional to 5,522.40, 7,620.48 and 3,426.12 is: 4,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,522.40 : 7,620.48 = 3,426.12 : x
  2. Step 2: Convert to fraction form
    5,522.40/7,620.48 = 3,426.12/x
  3. Step 3: Cross multiply
    5,522.40x = 7,620.48 × 3,426.12
  4. Step 4: Simplify right side
    5,522.40x = 26,108,678.94
  5. Step 5: Solve for x
    x = 26,108,678.94/5,522.40
  6. Step 6: Final answer
    x = 4,727.78

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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.