Home / 6,947.90-10,419.99-1,949.98

Finding the Fourth Proportional to 6,947.90, 10,419.99 and 1,949.98

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Solution

The fourth proportional to 6,947.90, 10,419.99 and 1,949.98 is: 2,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.90 : 10,419.99 = 1,949.98 : x
  2. Step 2: Convert to fraction form
    6,947.90/10,419.99 = 1,949.98/x
  3. Step 3: Cross multiply
    6,947.90x = 10,419.99 × 1,949.98
  4. Step 4: Simplify right side
    6,947.90x = 20,318,772.10
  5. Step 5: Solve for x
    x = 20,318,772.10/6,947.90
  6. Step 6: Final answer
    x = 2,924.45

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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.