Home / 5,261.48-7,897.68-3,876.36

Finding the Fourth Proportional to 5,261.48, 7,897.68 and 3,876.36

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Solution

The fourth proportional to 5,261.48, 7,897.68 and 3,876.36 is: 5,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.48 : 7,897.68 = 3,876.36 : x
  2. Step 2: Convert to fraction form
    5,261.48/7,897.68 = 3,876.36/x
  3. Step 3: Cross multiply
    5,261.48x = 7,897.68 × 3,876.36
  4. Step 4: Simplify right side
    5,261.48x = 30,614,250.84
  5. Step 5: Solve for x
    x = 30,614,250.84/5,261.48
  6. Step 6: Final answer
    x = 5,818.56

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1.5x scale

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.