Home / 7,758.90-10,706.97-4,222.04

Finding the Fourth Proportional to 7,758.90, 10,706.97 and 4,222.04

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Solution

The fourth proportional to 7,758.90, 10,706.97 and 4,222.04 is: 5,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.90 : 10,706.97 = 4,222.04 : x
  2. Step 2: Convert to fraction form
    7,758.90/10,706.97 = 4,222.04/x
  3. Step 3: Cross multiply
    7,758.90x = 10,706.97 × 4,222.04
  4. Step 4: Simplify right side
    7,758.90x = 45,205,255.62
  5. Step 5: Solve for x
    x = 45,205,255.62/7,758.90
  6. Step 6: Final answer
    x = 5,826.25

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1.5x scale

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.