Home / 5,113.40-7,664.48-2,917.28

Finding the Fourth Proportional to 5,113.40, 7,664.48 and 2,917.28

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Solution

The fourth proportional to 5,113.40, 7,664.48 and 2,917.28 is: 4,372.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.40 : 7,664.48 = 2,917.28 : x
  2. Step 2: Convert to fraction form
    5,113.40/7,664.48 = 2,917.28/x
  3. Step 3: Cross multiply
    5,113.40x = 7,664.48 × 2,917.28
  4. Step 4: Simplify right side
    5,113.40x = 22,359,434.21
  5. Step 5: Solve for x
    x = 22,359,434.21/5,113.40
  6. Step 6: Final answer
    x = 4,372.71

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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.