Home / 7,928.08-10,940.88-4,742.08

Finding the Fourth Proportional to 7,928.08, 10,940.88 and 4,742.08

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Solution

The fourth proportional to 7,928.08, 10,940.88 and 4,742.08 is: 6,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.08 : 10,940.88 = 4,742.08 : x
  2. Step 2: Convert to fraction form
    7,928.08/10,940.88 = 4,742.08/x
  3. Step 3: Cross multiply
    7,928.08x = 10,940.88 × 4,742.08
  4. Step 4: Simplify right side
    7,928.08x = 51,882,528.23
  5. Step 5: Solve for x
    x = 51,882,528.23/7,928.08
  6. Step 6: Final answer
    x = 6,544.15

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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.