Home / 5,255.88-7,253.11-2,898.17

Finding the Fourth Proportional to 5,255.88, 7,253.11 and 2,898.17

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Solution

The fourth proportional to 5,255.88, 7,253.11 and 2,898.17 is: 3,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.88 : 7,253.11 = 2,898.17 : x
  2. Step 2: Convert to fraction form
    5,255.88/7,253.11 = 2,898.17/x
  3. Step 3: Cross multiply
    5,255.88x = 7,253.11 × 2,898.17
  4. Step 4: Simplify right side
    5,255.88x = 21,020,745.81
  5. Step 5: Solve for x
    x = 21,020,745.81/5,255.88
  6. Step 6: Final answer
    x = 3,999.47

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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.