Home / 2,176.82-3,001.98-1,678.66

Finding the Fourth Proportional to 2,176.82, 3,001.98 and 1,678.66

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Solution

The fourth proportional to 2,176.82, 3,001.98 and 1,678.66 is: 2,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.82 : 3,001.98 = 1,678.66 : x
  2. Step 2: Convert to fraction form
    2,176.82/3,001.98 = 1,678.66/x
  3. Step 3: Cross multiply
    2,176.82x = 3,001.98 × 1,678.66
  4. Step 4: Simplify right side
    2,176.82x = 5,039,303.75
  5. Step 5: Solve for x
    x = 5,039,303.75/2,176.82
  6. Step 6: Final answer
    x = 2,314.98

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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.