Home / 1,786.72-2,677.13-616.08

Finding the Fourth Proportional to 1,786.72, 2,677.13 and 616.08

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Solution

The fourth proportional to 1,786.72, 2,677.13 and 616.08 is: 923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.72 : 2,677.13 = 616.08 : x
  2. Step 2: Convert to fraction form
    1,786.72/2,677.13 = 616.08/x
  3. Step 3: Cross multiply
    1,786.72x = 2,677.13 × 616.08
  4. Step 4: Simplify right side
    1,786.72x = 1,649,323.17
  5. Step 5: Solve for x
    x = 1,649,323.17/1,786.72
  6. Step 6: Final answer
    x = 923.10

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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.