Home / 3,481.40-4,803.54-1,988.84

Finding the Fourth Proportional to 3,481.40, 4,803.54 and 1,988.84

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Solution

The fourth proportional to 3,481.40, 4,803.54 and 1,988.84 is: 2,744.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.40 : 4,803.54 = 1,988.84 : x
  2. Step 2: Convert to fraction form
    3,481.40/4,803.54 = 1,988.84/x
  3. Step 3: Cross multiply
    3,481.40x = 4,803.54 × 1,988.84
  4. Step 4: Simplify right side
    3,481.40x = 9,553,448.48
  5. Step 5: Solve for x
    x = 9,553,448.48/3,481.40
  6. Step 6: Final answer
    x = 2,744.14

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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.