Home / 4,065.81-5,611.97-2,387.28

Finding the Fourth Proportional to 4,065.81, 5,611.97 and 2,387.28

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Solution

The fourth proportional to 4,065.81, 5,611.97 and 2,387.28 is: 3,295.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,065.81 : 5,611.97 = 2,387.28 : x
  2. Step 2: Convert to fraction form
    4,065.81/5,611.97 = 2,387.28/x
  3. Step 3: Cross multiply
    4,065.81x = 5,611.97 × 2,387.28
  4. Step 4: Simplify right side
    4,065.81x = 13,397,343.74
  5. Step 5: Solve for x
    x = 13,397,343.74/4,065.81
  6. Step 6: Final answer
    x = 3,295.12

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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.