Home / 3,585.12-5,378.88-1,637.28

Finding the Fourth Proportional to 3,585.12, 5,378.88 and 1,637.28

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Solution

The fourth proportional to 3,585.12, 5,378.88 and 1,637.28 is: 2,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.12 : 5,378.88 = 1,637.28 : x
  2. Step 2: Convert to fraction form
    3,585.12/5,378.88 = 1,637.28/x
  3. Step 3: Cross multiply
    3,585.12x = 5,378.88 × 1,637.28
  4. Step 4: Simplify right side
    3,585.12x = 8,806,732.65
  5. Step 5: Solve for x
    x = 8,806,732.65/3,585.12
  6. Step 6: Final answer
    x = 2,456.47

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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.