Home / 2,174.69-3,001.57-1,278.83

Finding the Fourth Proportional to 2,174.69, 3,001.57 and 1,278.83

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Solution

The fourth proportional to 2,174.69, 3,001.57 and 1,278.83 is: 1,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.69 : 3,001.57 = 1,278.83 : x
  2. Step 2: Convert to fraction form
    2,174.69/3,001.57 = 1,278.83/x
  3. Step 3: Cross multiply
    2,174.69x = 3,001.57 × 1,278.83
  4. Step 4: Simplify right side
    2,174.69x = 3,838,502.07
  5. Step 5: Solve for x
    x = 3,838,502.07/2,174.69
  6. Step 6: Final answer
    x = 1,765.08

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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.