Home / 7,725.64-10,660.74-4,581.28

Finding the Fourth Proportional to 7,725.64, 10,660.74 and 4,581.28

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Solution

The fourth proportional to 7,725.64, 10,660.74 and 4,581.28 is: 6,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.64 : 10,660.74 = 4,581.28 : x
  2. Step 2: Convert to fraction form
    7,725.64/10,660.74 = 4,581.28/x
  3. Step 3: Cross multiply
    7,725.64x = 10,660.74 × 4,581.28
  4. Step 4: Simplify right side
    7,725.64x = 48,839,834.95
  5. Step 5: Solve for x
    x = 48,839,834.95/7,725.64
  6. Step 6: Final answer
    x = 6,321.78

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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.