Home / 3,518.16-5,275.62-1,325.49

Finding the Fourth Proportional to 3,518.16, 5,275.62 and 1,325.49

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Solution

The fourth proportional to 3,518.16, 5,275.62 and 1,325.49 is: 1,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.16 : 5,275.62 = 1,325.49 : x
  2. Step 2: Convert to fraction form
    3,518.16/5,275.62 = 1,325.49/x
  3. Step 3: Cross multiply
    3,518.16x = 5,275.62 × 1,325.49
  4. Step 4: Simplify right side
    3,518.16x = 6,992,781.55
  5. Step 5: Solve for x
    x = 6,992,781.55/3,518.16
  6. Step 6: Final answer
    x = 1,987.62

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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.