Home / 2,655.67-3,981.87-2,312.23

Finding the Fourth Proportional to 2,655.67, 3,981.87 and 2,312.23

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Solution

The fourth proportional to 2,655.67, 3,981.87 and 2,312.23 is: 3,466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.67 : 3,981.87 = 2,312.23 : x
  2. Step 2: Convert to fraction form
    2,655.67/3,981.87 = 2,312.23/x
  3. Step 3: Cross multiply
    2,655.67x = 3,981.87 × 2,312.23
  4. Step 4: Simplify right side
    2,655.67x = 9,206,999.27
  5. Step 5: Solve for x
    x = 9,206,999.27/2,655.67
  6. Step 6: Final answer
    x = 3,466.92

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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.