Home / 3,968.10-5,475.96-2,175.58

Finding the Fourth Proportional to 3,968.10, 5,475.96 and 2,175.58

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Solution

The fourth proportional to 3,968.10, 5,475.96 and 2,175.58 is: 3,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.10 : 5,475.96 = 2,175.58 : x
  2. Step 2: Convert to fraction form
    3,968.10/5,475.96 = 2,175.58/x
  3. Step 3: Cross multiply
    3,968.10x = 5,475.96 × 2,175.58
  4. Step 4: Simplify right side
    3,968.10x = 11,913,389.06
  5. Step 5: Solve for x
    x = 11,913,389.06/3,968.10
  6. Step 6: Final answer
    x = 3,002.29

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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.