Home / 2,285.46-3,155.70-1,787.22

Finding the Fourth Proportional to 2,285.46, 3,155.70 and 1,787.22

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Solution

The fourth proportional to 2,285.46, 3,155.70 and 1,787.22 is: 2,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.46 : 3,155.70 = 1,787.22 : x
  2. Step 2: Convert to fraction form
    2,285.46/3,155.70 = 1,787.22/x
  3. Step 3: Cross multiply
    2,285.46x = 3,155.70 × 1,787.22
  4. Step 4: Simplify right side
    2,285.46x = 5,639,930.15
  5. Step 5: Solve for x
    x = 5,639,930.15/2,285.46
  6. Step 6: Final answer
    x = 2,467.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.