Home / 6,619.56-9,931.42-2,725.80

Finding the Fourth Proportional to 6,619.56, 9,931.42 and 2,725.80

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Solution

The fourth proportional to 6,619.56, 9,931.42 and 2,725.80 is: 4,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.56 : 9,931.42 = 2,725.80 : x
  2. Step 2: Convert to fraction form
    6,619.56/9,931.42 = 2,725.80/x
  3. Step 3: Cross multiply
    6,619.56x = 9,931.42 × 2,725.80
  4. Step 4: Simplify right side
    6,619.56x = 27,071,064.64
  5. Step 5: Solve for x
    x = 27,071,064.64/6,619.56
  6. Step 6: Final answer
    x = 4,089.56

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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.