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Finding the Fourth Proportional to 2,348.65, 3,238.90 and 1,404.29

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Solution

The fourth proportional to 2,348.65, 3,238.90 and 1,404.29 is: 1,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.65 : 3,238.90 = 1,404.29 : x
  2. Step 2: Convert to fraction form
    2,348.65/3,238.90 = 1,404.29/x
  3. Step 3: Cross multiply
    2,348.65x = 3,238.90 × 1,404.29
  4. Step 4: Simplify right side
    2,348.65x = 4,548,351.93
  5. Step 5: Solve for x
    x = 4,548,351.93/2,348.65
  6. Step 6: Final answer
    x = 1,936.58

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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.