Home / 5,179.49-7,766.93-1,890.28

Finding the Fourth Proportional to 5,179.49, 7,766.93 and 1,890.28

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Solution

The fourth proportional to 5,179.49, 7,766.93 and 1,890.28 is: 2,834.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.49 : 7,766.93 = 1,890.28 : x
  2. Step 2: Convert to fraction form
    5,179.49/7,766.93 = 1,890.28/x
  3. Step 3: Cross multiply
    5,179.49x = 7,766.93 × 1,890.28
  4. Step 4: Simplify right side
    5,179.49x = 14,681,672.44
  5. Step 5: Solve for x
    x = 14,681,672.44/5,179.49
  6. Step 6: Final answer
    x = 2,834.58

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1.5x scale

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.