Home / 7,759.85-11,642.58-3,810.69

Finding the Fourth Proportional to 7,759.85, 11,642.58 and 3,810.69

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Solution

The fourth proportional to 7,759.85, 11,642.58 and 3,810.69 is: 5,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.85 : 11,642.58 = 3,810.69 : x
  2. Step 2: Convert to fraction form
    7,759.85/11,642.58 = 3,810.69/x
  3. Step 3: Cross multiply
    7,759.85x = 11,642.58 × 3,810.69
  4. Step 4: Simplify right side
    7,759.85x = 44,366,263.18
  5. Step 5: Solve for x
    x = 44,366,263.18/7,759.85
  6. Step 6: Final answer
    x = 5,717.42

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1.5x scale

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.