Home / 6,724.80-10,090.20-2,345.40

Finding the Fourth Proportional to 6,724.80, 10,090.20 and 2,345.40

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Solution

The fourth proportional to 6,724.80, 10,090.20 and 2,345.40 is: 3,519.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.80 : 10,090.20 = 2,345.40 : x
  2. Step 2: Convert to fraction form
    6,724.80/10,090.20 = 2,345.40/x
  3. Step 3: Cross multiply
    6,724.80x = 10,090.20 × 2,345.40
  4. Step 4: Simplify right side
    6,724.80x = 23,665,555.08
  5. Step 5: Solve for x
    x = 23,665,555.08/6,724.80
  6. Step 6: Final answer
    x = 3,519.15

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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.