Home / 3,478.04-5,218.43-1,528.88

Finding the Fourth Proportional to 3,478.04, 5,218.43 and 1,528.88

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Solution

The fourth proportional to 3,478.04, 5,218.43 and 1,528.88 is: 2,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.04 : 5,218.43 = 1,528.88 : x
  2. Step 2: Convert to fraction form
    3,478.04/5,218.43 = 1,528.88/x
  3. Step 3: Cross multiply
    3,478.04x = 5,218.43 × 1,528.88
  4. Step 4: Simplify right side
    3,478.04x = 7,978,319.52
  5. Step 5: Solve for x
    x = 7,978,319.52/3,478.04
  6. Step 6: Final answer
    x = 2,293.91

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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.