Home / 5,436.68-7,499.45-3,078.36

Finding the Fourth Proportional to 5,436.68, 7,499.45 and 3,078.36

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Solution

The fourth proportional to 5,436.68, 7,499.45 and 3,078.36 is: 4,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.68 : 7,499.45 = 3,078.36 : x
  2. Step 2: Convert to fraction form
    5,436.68/7,499.45 = 3,078.36/x
  3. Step 3: Cross multiply
    5,436.68x = 7,499.45 × 3,078.36
  4. Step 4: Simplify right side
    5,436.68x = 23,085,991.51
  5. Step 5: Solve for x
    x = 23,085,991.51/5,436.68
  6. Step 6: Final answer
    x = 4,246.34

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Half scale
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Double scale
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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.