Home / 4,080.81-5,631.56-2,217.81

Finding the Fourth Proportional to 4,080.81, 5,631.56 and 2,217.81

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Solution

The fourth proportional to 4,080.81, 5,631.56 and 2,217.81 is: 3,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.81 : 5,631.56 = 2,217.81 : x
  2. Step 2: Convert to fraction form
    4,080.81/5,631.56 = 2,217.81/x
  3. Step 3: Cross multiply
    4,080.81x = 5,631.56 × 2,217.81
  4. Step 4: Simplify right side
    4,080.81x = 12,489,730.08
  5. Step 5: Solve for x
    x = 12,489,730.08/4,080.81
  6. Step 6: Final answer
    x = 3,060.60

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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.