Home / 3,200.08-4,802.25-1,120.08

Finding the Fourth Proportional to 3,200.08, 4,802.25 and 1,120.08

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Solution

The fourth proportional to 3,200.08, 4,802.25 and 1,120.08 is: 1,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.08 : 4,802.25 = 1,120.08 : x
  2. Step 2: Convert to fraction form
    3,200.08/4,802.25 = 1,120.08/x
  3. Step 3: Cross multiply
    3,200.08x = 4,802.25 × 1,120.08
  4. Step 4: Simplify right side
    3,200.08x = 5,378,913.39
  5. Step 5: Solve for x
    x = 5,378,913.39/3,200.08
  6. Step 6: Final answer
    x = 1,680.87

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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.