Home / 6,928.68-10,395.36-2,978.13

Finding the Fourth Proportional to 6,928.68, 10,395.36 and 2,978.13

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Solution

The fourth proportional to 6,928.68, 10,395.36 and 2,978.13 is: 4,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.68 : 10,395.36 = 2,978.13 : x
  2. Step 2: Convert to fraction form
    6,928.68/10,395.36 = 2,978.13/x
  3. Step 3: Cross multiply
    6,928.68x = 10,395.36 × 2,978.13
  4. Step 4: Simplify right side
    6,928.68x = 30,958,733.48
  5. Step 5: Solve for x
    x = 30,958,733.48/6,928.68
  6. Step 6: Final answer
    x = 4,468.20

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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.