Home / 3,311.48-4,963.98-1,581.32

Finding the Fourth Proportional to 3,311.48, 4,963.98 and 1,581.32

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Solution

The fourth proportional to 3,311.48, 4,963.98 and 1,581.32 is: 2,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.48 : 4,963.98 = 1,581.32 : x
  2. Step 2: Convert to fraction form
    3,311.48/4,963.98 = 1,581.32/x
  3. Step 3: Cross multiply
    3,311.48x = 4,963.98 × 1,581.32
  4. Step 4: Simplify right side
    3,311.48x = 7,849,659.19
  5. Step 5: Solve for x
    x = 7,849,659.19/3,311.48
  6. Step 6: Final answer
    x = 2,370.44

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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.