Home / 1,851.35-2,554.96-1,065.65

Finding the Fourth Proportional to 1,851.35, 2,554.96 and 1,065.65

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Solution

The fourth proportional to 1,851.35, 2,554.96 and 1,065.65 is: 1,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.35 : 2,554.96 = 1,065.65 : x
  2. Step 2: Convert to fraction form
    1,851.35/2,554.96 = 1,065.65/x
  3. Step 3: Cross multiply
    1,851.35x = 2,554.96 × 1,065.65
  4. Step 4: Simplify right side
    1,851.35x = 2,722,675.02
  5. Step 5: Solve for x
    x = 2,722,675.02/1,851.35
  6. Step 6: Final answer
    x = 1,470.65

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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.