Home / 6,005.20-9,001.20-2,107.60

Finding the Fourth Proportional to 6,005.20, 9,001.20 and 2,107.60

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Solution

The fourth proportional to 6,005.20, 9,001.20 and 2,107.60 is: 3,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,005.20 : 9,001.20 = 2,107.60 : x
  2. Step 2: Convert to fraction form
    6,005.20/9,001.20 = 2,107.60/x
  3. Step 3: Cross multiply
    6,005.20x = 9,001.20 × 2,107.60
  4. Step 4: Simplify right side
    6,005.20x = 18,970,929.12
  5. Step 5: Solve for x
    x = 18,970,929.12/6,005.20
  6. Step 6: Final answer
    x = 3,159.08

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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.