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Finding the Fourth Proportional to 1,599.96, 2,400.66 and 868.44

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Solution

The fourth proportional to 1,599.96, 2,400.66 and 868.44 is: 1,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.96 : 2,400.66 = 868.44 : x
  2. Step 2: Convert to fraction form
    1,599.96/2,400.66 = 868.44/x
  3. Step 3: Cross multiply
    1,599.96x = 2,400.66 × 868.44
  4. Step 4: Simplify right side
    1,599.96x = 2,084,829.17
  5. Step 5: Solve for x
    x = 2,084,829.17/1,599.96
  6. Step 6: Final answer
    x = 1,303.05

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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.