Home / 1,955.09-2,698.10-1,115.93

Finding the Fourth Proportional to 1,955.09, 2,698.10 and 1,115.93

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Solution

The fourth proportional to 1,955.09, 2,698.10 and 1,115.93 is: 1,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.09 : 2,698.10 = 1,115.93 : x
  2. Step 2: Convert to fraction form
    1,955.09/2,698.10 = 1,115.93/x
  3. Step 3: Cross multiply
    1,955.09x = 2,698.10 × 1,115.93
  4. Step 4: Simplify right side
    1,955.09x = 3,010,871.66
  5. Step 5: Solve for x
    x = 3,010,871.66/1,955.09
  6. Step 6: Final answer
    x = 1,540.02

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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.