Home / 2,188.04-3,281.82-727.28

Finding the Fourth Proportional to 2,188.04, 3,281.82 and 727.28

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Solution

The fourth proportional to 2,188.04, 3,281.82 and 727.28 is: 1,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.04 : 3,281.82 = 727.28 : x
  2. Step 2: Convert to fraction form
    2,188.04/3,281.82 = 727.28/x
  3. Step 3: Cross multiply
    2,188.04x = 3,281.82 × 727.28
  4. Step 4: Simplify right side
    2,188.04x = 2,386,802.05
  5. Step 5: Solve for x
    x = 2,386,802.05/2,188.04
  6. Step 6: Final answer
    x = 1,090.84

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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.