Home / 3,815.10-5,266.62-2,472.12

Finding the Fourth Proportional to 3,815.10, 5,266.62 and 2,472.12

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Solution

The fourth proportional to 3,815.10, 5,266.62 and 2,472.12 is: 3,412.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.10 : 5,266.62 = 2,472.12 : x
  2. Step 2: Convert to fraction form
    3,815.10/5,266.62 = 2,472.12/x
  3. Step 3: Cross multiply
    3,815.10x = 5,266.62 × 2,472.12
  4. Step 4: Simplify right side
    3,815.10x = 13,019,716.63
  5. Step 5: Solve for x
    x = 13,019,716.63/3,815.10
  6. Step 6: Final answer
    x = 3,412.68

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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.