Home / 1,859.97-2,566.51-1,113.78

Finding the Fourth Proportional to 1,859.97, 2,566.51 and 1,113.78

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Solution

The fourth proportional to 1,859.97, 2,566.51 and 1,113.78 is: 1,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.97 : 2,566.51 = 1,113.78 : x
  2. Step 2: Convert to fraction form
    1,859.97/2,566.51 = 1,113.78/x
  3. Step 3: Cross multiply
    1,859.97x = 2,566.51 × 1,113.78
  4. Step 4: Simplify right side
    1,859.97x = 2,858,527.51
  5. Step 5: Solve for x
    x = 2,858,527.51/1,859.97
  6. Step 6: Final answer
    x = 1,536.87

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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.