Home / 3,935.10-5,429.43-2,442.90

Finding the Fourth Proportional to 3,935.10, 5,429.43 and 2,442.90

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Solution

The fourth proportional to 3,935.10, 5,429.43 and 2,442.90 is: 3,370.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.10 : 5,429.43 = 2,442.90 : x
  2. Step 2: Convert to fraction form
    3,935.10/5,429.43 = 2,442.90/x
  3. Step 3: Cross multiply
    3,935.10x = 5,429.43 × 2,442.90
  4. Step 4: Simplify right side
    3,935.10x = 13,263,554.55
  5. Step 5: Solve for x
    x = 13,263,554.55/3,935.10
  6. Step 6: Final answer
    x = 3,370.58

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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.