Home / 3,690.10-5,538.62-2,458.38

Finding the Fourth Proportional to 3,690.10, 5,538.62 and 2,458.38

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Solution

The fourth proportional to 3,690.10, 5,538.62 and 2,458.38 is: 3,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.10 : 5,538.62 = 2,458.38 : x
  2. Step 2: Convert to fraction form
    3,690.10/5,538.62 = 2,458.38/x
  3. Step 3: Cross multiply
    3,690.10x = 5,538.62 × 2,458.38
  4. Step 4: Simplify right side
    3,690.10x = 13,616,032.64
  5. Step 5: Solve for x
    x = 13,616,032.64/3,690.10
  6. Step 6: Final answer
    x = 3,689.88

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1.5x scale

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.