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Finding the Fourth Proportional to 1,800.98, 2,699.85 and 706.13

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Solution

The fourth proportional to 1,800.98, 2,699.85 and 706.13 is: 1,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.98 : 2,699.85 = 706.13 : x
  2. Step 2: Convert to fraction form
    1,800.98/2,699.85 = 706.13/x
  3. Step 3: Cross multiply
    1,800.98x = 2,699.85 × 706.13
  4. Step 4: Simplify right side
    1,800.98x = 1,906,445.08
  5. Step 5: Solve for x
    x = 1,906,445.08/1,800.98
  6. Step 6: Final answer
    x = 1,058.56

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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.