Home / 3,080.81-4,618.78-1,619.17

Finding the Fourth Proportional to 3,080.81, 4,618.78 and 1,619.17

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Solution

The fourth proportional to 3,080.81, 4,618.78 and 1,619.17 is: 2,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.81 : 4,618.78 = 1,619.17 : x
  2. Step 2: Convert to fraction form
    3,080.81/4,618.78 = 1,619.17/x
  3. Step 3: Cross multiply
    3,080.81x = 4,618.78 × 1,619.17
  4. Step 4: Simplify right side
    3,080.81x = 7,478,590.01
  5. Step 5: Solve for x
    x = 7,478,590.01/3,080.81
  6. Step 6: Final answer
    x = 2,427.48

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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.