Home / 2,730.56-4,095.78-1,191.56

Finding the Fourth Proportional to 2,730.56, 4,095.78 and 1,191.56

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Solution

The fourth proportional to 2,730.56, 4,095.78 and 1,191.56 is: 1,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.56 : 4,095.78 = 1,191.56 : x
  2. Step 2: Convert to fraction form
    2,730.56/4,095.78 = 1,191.56/x
  3. Step 3: Cross multiply
    2,730.56x = 4,095.78 × 1,191.56
  4. Step 4: Simplify right side
    2,730.56x = 4,880,367.62
  5. Step 5: Solve for x
    x = 4,880,367.62/2,730.56
  6. Step 6: Final answer
    x = 1,787.31

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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.