Home / 4,891.90-7,338.78-1,772.04

Finding the Fourth Proportional to 4,891.90, 7,338.78 and 1,772.04

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Solution

The fourth proportional to 4,891.90, 7,338.78 and 1,772.04 is: 2,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,891.90 : 7,338.78 = 1,772.04 : x
  2. Step 2: Convert to fraction form
    4,891.90/7,338.78 = 1,772.04/x
  3. Step 3: Cross multiply
    4,891.90x = 7,338.78 × 1,772.04
  4. Step 4: Simplify right side
    4,891.90x = 13,004,611.71
  5. Step 5: Solve for x
    x = 13,004,611.71/4,891.90
  6. Step 6: Final answer
    x = 2,658.40

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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.