Home / 1,669.91-2,305.51-1,159.81

Finding the Fourth Proportional to 1,669.91, 2,305.51 and 1,159.81

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Solution

The fourth proportional to 1,669.91, 2,305.51 and 1,159.81 is: 1,601.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.91 : 2,305.51 = 1,159.81 : x
  2. Step 2: Convert to fraction form
    1,669.91/2,305.51 = 1,159.81/x
  3. Step 3: Cross multiply
    1,669.91x = 2,305.51 × 1,159.81
  4. Step 4: Simplify right side
    1,669.91x = 2,673,944.89
  5. Step 5: Solve for x
    x = 2,673,944.89/1,669.91
  6. Step 6: Final answer
    x = 1,601.26

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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.