Home / 5,113.20-7,664.40-2,917.20

Finding the Fourth Proportional to 5,113.20, 7,664.40 and 2,917.20

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Solution

The fourth proportional to 5,113.20, 7,664.40 and 2,917.20 is: 4,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.20 : 7,664.40 = 2,917.20 : x
  2. Step 2: Convert to fraction form
    5,113.20/7,664.40 = 2,917.20/x
  3. Step 3: Cross multiply
    5,113.20x = 7,664.40 × 2,917.20
  4. Step 4: Simplify right side
    5,113.20x = 22,358,587.68
  5. Step 5: Solve for x
    x = 22,358,587.68/5,113.20
  6. Step 6: Final answer
    x = 4,372.72

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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.