Home / 6,928.52-10,385.40-3,419.60

Finding the Fourth Proportional to 6,928.52, 10,385.40 and 3,419.60

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Solution

The fourth proportional to 6,928.52, 10,385.40 and 3,419.60 is: 5,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.52 : 10,385.40 = 3,419.60 : x
  2. Step 2: Convert to fraction form
    6,928.52/10,385.40 = 3,419.60/x
  3. Step 3: Cross multiply
    6,928.52x = 10,385.40 × 3,419.60
  4. Step 4: Simplify right side
    6,928.52x = 35,513,913.84
  5. Step 5: Solve for x
    x = 35,513,913.84/6,928.52
  6. Step 6: Final answer
    x = 5,125.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.