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Finding the Fourth Proportional to 1,866.61, 2,577.99 and 1,451.98

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Solution

The fourth proportional to 1,866.61, 2,577.99 and 1,451.98 is: 2,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.61 : 2,577.99 = 1,451.98 : x
  2. Step 2: Convert to fraction form
    1,866.61/2,577.99 = 1,451.98/x
  3. Step 3: Cross multiply
    1,866.61x = 2,577.99 × 1,451.98
  4. Step 4: Simplify right side
    1,866.61x = 3,743,189.92
  5. Step 5: Solve for x
    x = 3,743,189.92/1,866.61
  6. Step 6: Final answer
    x = 2,005.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.