Home / 2,353.39-3,247.47-1,290.98

Finding the Fourth Proportional to 2,353.39, 3,247.47 and 1,290.98

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Solution

The fourth proportional to 2,353.39, 3,247.47 and 1,290.98 is: 1,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.39 : 3,247.47 = 1,290.98 : x
  2. Step 2: Convert to fraction form
    2,353.39/3,247.47 = 1,290.98/x
  3. Step 3: Cross multiply
    2,353.39x = 3,247.47 × 1,290.98
  4. Step 4: Simplify right side
    2,353.39x = 4,192,426.94
  5. Step 5: Solve for x
    x = 4,192,426.94/2,353.39
  6. Step 6: Final answer
    x = 1,781.44

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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.