Home / 2,447.78-3,672.08-1,215.23

Finding the Fourth Proportional to 2,447.78, 3,672.08 and 1,215.23

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Solution

The fourth proportional to 2,447.78, 3,672.08 and 1,215.23 is: 1,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.78 : 3,672.08 = 1,215.23 : x
  2. Step 2: Convert to fraction form
    2,447.78/3,672.08 = 1,215.23/x
  3. Step 3: Cross multiply
    2,447.78x = 3,672.08 × 1,215.23
  4. Step 4: Simplify right side
    2,447.78x = 4,462,421.78
  5. Step 5: Solve for x
    x = 4,462,421.78/2,447.78
  6. Step 6: Final answer
    x = 1,823.05

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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.