Home / 7,109.64-10,667.30-3,821.85

Finding the Fourth Proportional to 7,109.64, 10,667.30 and 3,821.85

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Solution

The fourth proportional to 7,109.64, 10,667.30 and 3,821.85 is: 5,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.64 : 10,667.30 = 3,821.85 : x
  2. Step 2: Convert to fraction form
    7,109.64/10,667.30 = 3,821.85/x
  3. Step 3: Cross multiply
    7,109.64x = 10,667.30 × 3,821.85
  4. Step 4: Simplify right side
    7,109.64x = 40,768,801.40
  5. Step 5: Solve for x
    x = 40,768,801.40/7,109.64
  6. Step 6: Final answer
    x = 5,734.30

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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.