Home / 2,556.88-3,834.91-707.65

Finding the Fourth Proportional to 2,556.88, 3,834.91 and 707.65

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Solution

The fourth proportional to 2,556.88, 3,834.91 and 707.65 is: 1,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.88 : 3,834.91 = 707.65 : x
  2. Step 2: Convert to fraction form
    2,556.88/3,834.91 = 707.65/x
  3. Step 3: Cross multiply
    2,556.88x = 3,834.91 × 707.65
  4. Step 4: Simplify right side
    2,556.88x = 2,713,774.06
  5. Step 5: Solve for x
    x = 2,713,774.06/2,556.88
  6. Step 6: Final answer
    x = 1,061.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.