Home / 6,690.40-10,036.81-2,992.55

Finding the Fourth Proportional to 6,690.40, 10,036.81 and 2,992.55

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Solution

The fourth proportional to 6,690.40, 10,036.81 and 2,992.55 is: 4,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.40 : 10,036.81 = 2,992.55 : x
  2. Step 2: Convert to fraction form
    6,690.40/10,036.81 = 2,992.55/x
  3. Step 3: Cross multiply
    6,690.40x = 10,036.81 × 2,992.55
  4. Step 4: Simplify right side
    6,690.40x = 30,035,609.32
  5. Step 5: Solve for x
    x = 30,035,609.32/6,690.40
  6. Step 6: Final answer
    x = 4,489.36

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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.