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Finding the Fourth Proportional to 2,398.65, 3,596.70 and 754.77

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Solution

The fourth proportional to 2,398.65, 3,596.70 and 754.77 is: 1,131.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.65 : 3,596.70 = 754.77 : x
  2. Step 2: Convert to fraction form
    2,398.65/3,596.70 = 754.77/x
  3. Step 3: Cross multiply
    2,398.65x = 3,596.70 × 754.77
  4. Step 4: Simplify right side
    2,398.65x = 2,714,681.26
  5. Step 5: Solve for x
    x = 2,714,681.26/2,398.65
  6. Step 6: Final answer
    x = 1,131.75

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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.