Home / 1,565.73-2,160.45-936.51

Finding the Fourth Proportional to 1,565.73, 2,160.45 and 936.51

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Solution

The fourth proportional to 1,565.73, 2,160.45 and 936.51 is: 1,292.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.73 : 2,160.45 = 936.51 : x
  2. Step 2: Convert to fraction form
    1,565.73/2,160.45 = 936.51/x
  3. Step 3: Cross multiply
    1,565.73x = 2,160.45 × 936.51
  4. Step 4: Simplify right side
    1,565.73x = 2,023,283.03
  5. Step 5: Solve for x
    x = 2,023,283.03/1,565.73
  6. Step 6: Final answer
    x = 1,292.23

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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.