Home / 6,928.80-10,390.50-2,545.08

Finding the Fourth Proportional to 6,928.80, 10,390.50 and 2,545.08

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Solution

The fourth proportional to 6,928.80, 10,390.50 and 2,545.08 is: 3,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.80 : 10,390.50 = 2,545.08 : x
  2. Step 2: Convert to fraction form
    6,928.80/10,390.50 = 2,545.08/x
  3. Step 3: Cross multiply
    6,928.80x = 10,390.50 × 2,545.08
  4. Step 4: Simplify right side
    6,928.80x = 26,444,653.74
  5. Step 5: Solve for x
    x = 26,444,653.74/6,928.80
  6. Step 6: Final answer
    x = 3,816.63

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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.