Home / 6,624.12-9,142.40-3,791.60

Finding the Fourth Proportional to 6,624.12, 9,142.40 and 3,791.60

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Solution

The fourth proportional to 6,624.12, 9,142.40 and 3,791.60 is: 5,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.12 : 9,142.40 = 3,791.60 : x
  2. Step 2: Convert to fraction form
    6,624.12/9,142.40 = 3,791.60/x
  3. Step 3: Cross multiply
    6,624.12x = 9,142.40 × 3,791.60
  4. Step 4: Simplify right side
    6,624.12x = 34,664,323.84
  5. Step 5: Solve for x
    x = 34,664,323.84/6,624.12
  6. Step 6: Final answer
    x = 5,233.05

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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.