Home / 3,853.16-5,317.38-3,618.20

Finding the Fourth Proportional to 3,853.16, 5,317.38 and 3,618.20

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Solution

The fourth proportional to 3,853.16, 5,317.38 and 3,618.20 is: 4,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.16 : 5,317.38 = 3,618.20 : x
  2. Step 2: Convert to fraction form
    3,853.16/5,317.38 = 3,618.20/x
  3. Step 3: Cross multiply
    3,853.16x = 5,317.38 × 3,618.20
  4. Step 4: Simplify right side
    3,853.16x = 19,239,344.32
  5. Step 5: Solve for x
    x = 19,239,344.32/3,853.16
  6. Step 6: Final answer
    x = 4,993.13

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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.