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Finding the Fourth Proportional to 2,398.35, 3,597.77 and 858.99

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Solution

The fourth proportional to 2,398.35, 3,597.77 and 858.99 is: 1,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.35 : 3,597.77 = 858.99 : x
  2. Step 2: Convert to fraction form
    2,398.35/3,597.77 = 858.99/x
  3. Step 3: Cross multiply
    2,398.35x = 3,597.77 × 858.99
  4. Step 4: Simplify right side
    2,398.35x = 3,090,444.16
  5. Step 5: Solve for x
    x = 3,090,444.16/2,398.35
  6. Step 6: Final answer
    x = 1,288.57

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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.