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Finding the Fourth Proportional to 2,398.95, 3,598.79 and 755.33

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Solution

The fourth proportional to 2,398.95, 3,598.79 and 755.33 is: 1,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.95 : 3,598.79 = 755.33 : x
  2. Step 2: Convert to fraction form
    2,398.95/3,598.79 = 755.33/x
  3. Step 3: Cross multiply
    2,398.95x = 3,598.79 × 755.33
  4. Step 4: Simplify right side
    2,398.95x = 2,718,252.28
  5. Step 5: Solve for x
    x = 2,718,252.28/2,398.95
  6. Step 6: Final answer
    x = 1,133.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.