Home / 2,174.70-3,001.56-1,377.51

Finding the Fourth Proportional to 2,174.70, 3,001.56 and 1,377.51

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Solution

The fourth proportional to 2,174.70, 3,001.56 and 1,377.51 is: 1,901.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.70 : 3,001.56 = 1,377.51 : x
  2. Step 2: Convert to fraction form
    2,174.70/3,001.56 = 1,377.51/x
  3. Step 3: Cross multiply
    2,174.70x = 3,001.56 × 1,377.51
  4. Step 4: Simplify right side
    2,174.70x = 4,134,678.92
  5. Step 5: Solve for x
    x = 4,134,678.92/2,174.70
  6. Step 6: Final answer
    x = 1,901.26

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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.