Home / 7,080.35-10,621.40-2,699.06

Finding the Fourth Proportional to 7,080.35, 10,621.40 and 2,699.06

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Solution

The fourth proportional to 7,080.35, 10,621.40 and 2,699.06 is: 4,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.35 : 10,621.40 = 2,699.06 : x
  2. Step 2: Convert to fraction form
    7,080.35/10,621.40 = 2,699.06/x
  3. Step 3: Cross multiply
    7,080.35x = 10,621.40 × 2,699.06
  4. Step 4: Simplify right side
    7,080.35x = 28,667,729.28
  5. Step 5: Solve for x
    x = 28,667,729.28/7,080.35
  6. Step 6: Final answer
    x = 4,048.92

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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.