Home / 5,412.09-7,468.70-2,928.09

Finding the Fourth Proportional to 5,412.09, 7,468.70 and 2,928.09

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Solution

The fourth proportional to 5,412.09, 7,468.70 and 2,928.09 is: 4,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.09 : 7,468.70 = 2,928.09 : x
  2. Step 2: Convert to fraction form
    5,412.09/7,468.70 = 2,928.09/x
  3. Step 3: Cross multiply
    5,412.09x = 7,468.70 × 2,928.09
  4. Step 4: Simplify right side
    5,412.09x = 21,869,025.78
  5. Step 5: Solve for x
    x = 21,869,025.78/5,412.09
  6. Step 6: Final answer
    x = 4,040.77

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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.