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Finding the Fourth Proportional to 1,745.91, 2,409.51 and 999.97

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Solution

The fourth proportional to 1,745.91, 2,409.51 and 999.97 is: 1,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.91 : 2,409.51 = 999.97 : x
  2. Step 2: Convert to fraction form
    1,745.91/2,409.51 = 999.97/x
  3. Step 3: Cross multiply
    1,745.91x = 2,409.51 × 999.97
  4. Step 4: Simplify right side
    1,745.91x = 2,409,437.71
  5. Step 5: Solve for x
    x = 2,409,437.71/1,745.91
  6. Step 6: Final answer
    x = 1,380.05

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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.