Home / 4,976.64-6,871.64-3,090.96

Finding the Fourth Proportional to 4,976.64, 6,871.64 and 3,090.96

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Solution

The fourth proportional to 4,976.64, 6,871.64 and 3,090.96 is: 4,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.64 : 6,871.64 = 3,090.96 : x
  2. Step 2: Convert to fraction form
    4,976.64/6,871.64 = 3,090.96/x
  3. Step 3: Cross multiply
    4,976.64x = 6,871.64 × 3,090.96
  4. Step 4: Simplify right side
    4,976.64x = 21,239,948.92
  5. Step 5: Solve for x
    x = 21,239,948.92/4,976.64
  6. Step 6: Final answer
    x = 4,267.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.