Home / 2,446.60-3,670.80-985.90

Finding the Fourth Proportional to 2,446.60, 3,670.80 and 985.90

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Solution

The fourth proportional to 2,446.60, 3,670.80 and 985.90 is: 1,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.60 : 3,670.80 = 985.90 : x
  2. Step 2: Convert to fraction form
    2,446.60/3,670.80 = 985.90/x
  3. Step 3: Cross multiply
    2,446.60x = 3,670.80 × 985.90
  4. Step 4: Simplify right side
    2,446.60x = 3,619,041.72
  5. Step 5: Solve for x
    x = 3,619,041.72/2,446.60
  6. Step 6: Final answer
    x = 1,479.21

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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.