Home / 2,177.01-3,005.43-1,678.56

Finding the Fourth Proportional to 2,177.01, 3,005.43 and 1,678.56

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Solution

The fourth proportional to 2,177.01, 3,005.43 and 1,678.56 is: 2,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.01 : 3,005.43 = 1,678.56 : x
  2. Step 2: Convert to fraction form
    2,177.01/3,005.43 = 1,678.56/x
  3. Step 3: Cross multiply
    2,177.01x = 3,005.43 × 1,678.56
  4. Step 4: Simplify right side
    2,177.01x = 5,044,794.58
  5. Step 5: Solve for x
    x = 5,044,794.58/2,177.01
  6. Step 6: Final answer
    x = 2,317.30

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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.