Home / 3,934.47-5,429.41-2,254.68

Finding the Fourth Proportional to 3,934.47, 5,429.41 and 2,254.68

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Solution

The fourth proportional to 3,934.47, 5,429.41 and 2,254.68 is: 3,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.47 : 5,429.41 = 2,254.68 : x
  2. Step 2: Convert to fraction form
    3,934.47/5,429.41 = 2,254.68/x
  3. Step 3: Cross multiply
    3,934.47x = 5,429.41 × 2,254.68
  4. Step 4: Simplify right side
    3,934.47x = 12,241,576.50
  5. Step 5: Solve for x
    x = 12,241,576.50/3,934.47
  6. Step 6: Final answer
    x = 3,111.36

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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.