Home / 7,919.32-10,928.80-4,334.58

Finding the Fourth Proportional to 7,919.32, 10,928.80 and 4,334.58

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Solution

The fourth proportional to 7,919.32, 10,928.80 and 4,334.58 is: 5,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.32 : 10,928.80 = 4,334.58 : x
  2. Step 2: Convert to fraction form
    7,919.32/10,928.80 = 4,334.58/x
  3. Step 3: Cross multiply
    7,919.32x = 10,928.80 × 4,334.58
  4. Step 4: Simplify right side
    7,919.32x = 47,371,757.90
  5. Step 5: Solve for x
    x = 47,371,757.90/7,919.32
  6. Step 6: Final answer
    x = 5,981.80

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1.5x scale

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.