Home / 5,178.12-7,767.21-3,530.58

Finding the Fourth Proportional to 5,178.12, 7,767.21 and 3,530.58

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Solution

The fourth proportional to 5,178.12, 7,767.21 and 3,530.58 is: 5,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.12 : 7,767.21 = 3,530.58 : x
  2. Step 2: Convert to fraction form
    5,178.12/7,767.21 = 3,530.58/x
  3. Step 3: Cross multiply
    5,178.12x = 7,767.21 × 3,530.58
  4. Step 4: Simplify right side
    5,178.12x = 27,422,756.28
  5. Step 5: Solve for x
    x = 27,422,756.28/5,178.12
  6. Step 6: Final answer
    x = 5,295.89

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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.