Home / 3,935.71-5,429.38-2,445.36

Finding the Fourth Proportional to 3,935.71, 5,429.38 and 2,445.36

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Solution

The fourth proportional to 3,935.71, 5,429.38 and 2,445.36 is: 3,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.71 : 5,429.38 = 2,445.36 : x
  2. Step 2: Convert to fraction form
    3,935.71/5,429.38 = 2,445.36/x
  3. Step 3: Cross multiply
    3,935.71x = 5,429.38 × 2,445.36
  4. Step 4: Simplify right side
    3,935.71x = 13,276,788.68
  5. Step 5: Solve for x
    x = 13,276,788.68/3,935.71
  6. Step 6: Final answer
    x = 3,373.42

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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.