Home / 5,897.78-8,138.79-3,208.88

Finding the Fourth Proportional to 5,897.78, 8,138.79 and 3,208.88

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Solution

The fourth proportional to 5,897.78, 8,138.79 and 3,208.88 is: 4,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,897.78 : 8,138.79 = 3,208.88 : x
  2. Step 2: Convert to fraction form
    5,897.78/8,138.79 = 3,208.88/x
  3. Step 3: Cross multiply
    5,897.78x = 8,138.79 × 3,208.88
  4. Step 4: Simplify right side
    5,897.78x = 26,116,400.46
  5. Step 5: Solve for x
    x = 26,116,400.46/5,897.78
  6. Step 6: Final answer
    x = 4,428.17

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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.