Home / 5,080.93-7,621.16-2,118.15

Finding the Fourth Proportional to 5,080.93, 7,621.16 and 2,118.15

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Solution

The fourth proportional to 5,080.93, 7,621.16 and 2,118.15 is: 3,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.93 : 7,621.16 = 2,118.15 : x
  2. Step 2: Convert to fraction form
    5,080.93/7,621.16 = 2,118.15/x
  3. Step 3: Cross multiply
    5,080.93x = 7,621.16 × 2,118.15
  4. Step 4: Simplify right side
    5,080.93x = 16,142,749.46
  5. Step 5: Solve for x
    x = 16,142,749.46/5,080.93
  6. Step 6: Final answer
    x = 3,177.13

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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.