Home / 5,194.80-7,787.52-1,905.60

Finding the Fourth Proportional to 5,194.80, 7,787.52 and 1,905.60

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Solution

The fourth proportional to 5,194.80, 7,787.52 and 1,905.60 is: 2,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,194.80 : 7,787.52 = 1,905.60 : x
  2. Step 2: Convert to fraction form
    5,194.80/7,787.52 = 1,905.60/x
  3. Step 3: Cross multiply
    5,194.80x = 7,787.52 × 1,905.60
  4. Step 4: Simplify right side
    5,194.80x = 14,839,898.11
  5. Step 5: Solve for x
    x = 14,839,898.11/5,194.80
  6. Step 6: Final answer
    x = 2,856.68

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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.