Home / 3,936.04-5,430.40-2,443.44

Finding the Fourth Proportional to 3,936.04, 5,430.40 and 2,443.44

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Solution

The fourth proportional to 3,936.04, 5,430.40 and 2,443.44 is: 3,371.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.04 : 5,430.40 = 2,443.44 : x
  2. Step 2: Convert to fraction form
    3,936.04/5,430.40 = 2,443.44/x
  3. Step 3: Cross multiply
    3,936.04x = 5,430.40 × 2,443.44
  4. Step 4: Simplify right side
    3,936.04x = 13,268,856.58
  5. Step 5: Solve for x
    x = 13,268,856.58/3,936.04
  6. Step 6: Final answer
    x = 3,371.12

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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.