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Finding the Fourth Proportional to 6,990.78, 10,483.95 and 2,309.93

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Solution

The fourth proportional to 6,990.78, 10,483.95 and 2,309.93 is: 3,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.78 : 10,483.95 = 2,309.93 : x
  2. Step 2: Convert to fraction form
    6,990.78/10,483.95 = 2,309.93/x
  3. Step 3: Cross multiply
    6,990.78x = 10,483.95 × 2,309.93
  4. Step 4: Simplify right side
    6,990.78x = 24,217,138.20
  5. Step 5: Solve for x
    x = 24,217,138.20/6,990.78
  6. Step 6: Final answer
    x = 3,464.15

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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.