Home / 3,528.16-5,291.52-1,218.88

Finding the Fourth Proportional to 3,528.16, 5,291.52 and 1,218.88

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Solution

The fourth proportional to 3,528.16, 5,291.52 and 1,218.88 is: 1,828.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.16 : 5,291.52 = 1,218.88 : x
  2. Step 2: Convert to fraction form
    3,528.16/5,291.52 = 1,218.88/x
  3. Step 3: Cross multiply
    3,528.16x = 5,291.52 × 1,218.88
  4. Step 4: Simplify right side
    3,528.16x = 6,449,727.90
  5. Step 5: Solve for x
    x = 6,449,727.90/3,528.16
  6. Step 6: Final answer
    x = 1,828.07

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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.