Home / 5,261.47-7,889.91-2,795.70

Finding the Fourth Proportional to 5,261.47, 7,889.91 and 2,795.70

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Solution

The fourth proportional to 5,261.47, 7,889.91 and 2,795.70 is: 4,192.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.47 : 7,889.91 = 2,795.70 : x
  2. Step 2: Convert to fraction form
    5,261.47/7,889.91 = 2,795.70/x
  3. Step 3: Cross multiply
    5,261.47x = 7,889.91 × 2,795.70
  4. Step 4: Simplify right side
    5,261.47x = 22,057,821.39
  5. Step 5: Solve for x
    x = 22,057,821.39/5,261.47
  6. Step 6: Final answer
    x = 4,192.33

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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.