Home / 6,917.64-10,369.68-2,756.40

Finding the Fourth Proportional to 6,917.64, 10,369.68 and 2,756.40

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Solution

The fourth proportional to 6,917.64, 10,369.68 and 2,756.40 is: 4,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.64 : 10,369.68 = 2,756.40 : x
  2. Step 2: Convert to fraction form
    6,917.64/10,369.68 = 2,756.40/x
  3. Step 3: Cross multiply
    6,917.64x = 10,369.68 × 2,756.40
  4. Step 4: Simplify right side
    6,917.64x = 28,582,985.95
  5. Step 5: Solve for x
    x = 28,582,985.95/6,917.64
  6. Step 6: Final answer
    x = 4,131.90

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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.