Home / 7,195.95-10,778.30-3,490.39

Finding the Fourth Proportional to 7,195.95, 10,778.30 and 3,490.39

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Solution

The fourth proportional to 7,195.95, 10,778.30 and 3,490.39 is: 5,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.95 : 10,778.30 = 3,490.39 : x
  2. Step 2: Convert to fraction form
    7,195.95/10,778.30 = 3,490.39/x
  3. Step 3: Cross multiply
    7,195.95x = 10,778.30 × 3,490.39
  4. Step 4: Simplify right side
    7,195.95x = 37,620,470.54
  5. Step 5: Solve for x
    x = 37,620,470.54/7,195.95
  6. Step 6: Final answer
    x = 5,228.01

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1.5x scale

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.