Home / 2,637.14-3,640.42-1,575.28

Finding the Fourth Proportional to 2,637.14, 3,640.42 and 1,575.28

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Solution

The fourth proportional to 2,637.14, 3,640.42 and 1,575.28 is: 2,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.14 : 3,640.42 = 1,575.28 : x
  2. Step 2: Convert to fraction form
    2,637.14/3,640.42 = 1,575.28/x
  3. Step 3: Cross multiply
    2,637.14x = 3,640.42 × 1,575.28
  4. Step 4: Simplify right side
    2,637.14x = 5,734,680.82
  5. Step 5: Solve for x
    x = 5,734,680.82/2,637.14
  6. Step 6: Final answer
    x = 2,174.58

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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.