Home / 5,255-7,251.96-2,897.36

Finding the Fourth Proportional to 5,255, 7,251.96 and 2,897.36

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Solution

The fourth proportional to 5,255, 7,251.96 and 2,897.36 is: 3,998.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255 : 7,251.96 = 2,897.36 : x
  2. Step 2: Convert to fraction form
    5,255/7,251.96 = 2,897.36/x
  3. Step 3: Cross multiply
    5,255x = 7,251.96 × 2,897.36
  4. Step 4: Simplify right side
    5,255x = 21,011,538.83
  5. Step 5: Solve for x
    x = 21,011,538.83/5,255
  6. Step 6: Final answer
    x = 3,998.39

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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.