Home / 3,080.13-4,621.56-1,618.95

Finding the Fourth Proportional to 3,080.13, 4,621.56 and 1,618.95

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Solution

The fourth proportional to 3,080.13, 4,621.56 and 1,618.95 is: 2,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.13 : 4,621.56 = 1,618.95 : x
  2. Step 2: Convert to fraction form
    3,080.13/4,621.56 = 1,618.95/x
  3. Step 3: Cross multiply
    3,080.13x = 4,621.56 × 1,618.95
  4. Step 4: Simplify right side
    3,080.13x = 7,482,074.56
  5. Step 5: Solve for x
    x = 7,482,074.56/3,080.13
  6. Step 6: Final answer
    x = 2,429.14

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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.