Home / 6,129.20-9,189.30-2,429.60

Finding the Fourth Proportional to 6,129.20, 9,189.30 and 2,429.60

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Solution

The fourth proportional to 6,129.20, 9,189.30 and 2,429.60 is: 3,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.20 : 9,189.30 = 2,429.60 : x
  2. Step 2: Convert to fraction form
    6,129.20/9,189.30 = 2,429.60/x
  3. Step 3: Cross multiply
    6,129.20x = 9,189.30 × 2,429.60
  4. Step 4: Simplify right side
    6,129.20x = 22,326,323.28
  5. Step 5: Solve for x
    x = 22,326,323.28/6,129.20
  6. Step 6: Final answer
    x = 3,642.62

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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.