Home / 5,637.78-8,456.91-1,940.01

Finding the Fourth Proportional to 5,637.78, 8,456.91 and 1,940.01

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Solution

The fourth proportional to 5,637.78, 8,456.91 and 1,940.01 is: 2,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.78 : 8,456.91 = 1,940.01 : x
  2. Step 2: Convert to fraction form
    5,637.78/8,456.91 = 1,940.01/x
  3. Step 3: Cross multiply
    5,637.78x = 8,456.91 × 1,940.01
  4. Step 4: Simplify right side
    5,637.78x = 16,406,489.97
  5. Step 5: Solve for x
    x = 16,406,489.97/5,637.78
  6. Step 6: Final answer
    x = 2,910.10

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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.