Home / 7,919.22-10,928.40-4,334.08

Finding the Fourth Proportional to 7,919.22, 10,928.40 and 4,334.08

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Solution

The fourth proportional to 7,919.22, 10,928.40 and 4,334.08 is: 5,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.22 : 10,928.40 = 4,334.08 : x
  2. Step 2: Convert to fraction form
    7,919.22/10,928.40 = 4,334.08/x
  3. Step 3: Cross multiply
    7,919.22x = 10,928.40 × 4,334.08
  4. Step 4: Simplify right side
    7,919.22x = 47,364,559.87
  5. Step 5: Solve for x
    x = 47,364,559.87/7,919.22
  6. Step 6: Final answer
    x = 5,980.96

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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.