Home / 5,255.10-7,252.18-2,897.39

Finding the Fourth Proportional to 5,255.10, 7,252.18 and 2,897.39

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Solution

The fourth proportional to 5,255.10, 7,252.18 and 2,897.39 is: 3,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.10 : 7,252.18 = 2,897.39 : x
  2. Step 2: Convert to fraction form
    5,255.10/7,252.18 = 2,897.39/x
  3. Step 3: Cross multiply
    5,255.10x = 7,252.18 × 2,897.39
  4. Step 4: Simplify right side
    5,255.10x = 21,012,357.55
  5. Step 5: Solve for x
    x = 21,012,357.55/5,255.10
  6. Step 6: Final answer
    x = 3,998.47

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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.