Home / 5,383.39-7,429.05-3,145.36

Finding the Fourth Proportional to 5,383.39, 7,429.05 and 3,145.36

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Solution

The fourth proportional to 5,383.39, 7,429.05 and 3,145.36 is: 4,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.39 : 7,429.05 = 3,145.36 : x
  2. Step 2: Convert to fraction form
    5,383.39/7,429.05 = 3,145.36/x
  3. Step 3: Cross multiply
    5,383.39x = 7,429.05 × 3,145.36
  4. Step 4: Simplify right side
    5,383.39x = 23,367,036.71
  5. Step 5: Solve for x
    x = 23,367,036.71/5,383.39
  6. Step 6: Final answer
    x = 4,340.58

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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.