Home / 2,285.80-3,427.20-898.30

Finding the Fourth Proportional to 2,285.80, 3,427.20 and 898.30

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Solution

The fourth proportional to 2,285.80, 3,427.20 and 898.30 is: 1,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.80 : 3,427.20 = 898.30 : x
  2. Step 2: Convert to fraction form
    2,285.80/3,427.20 = 898.30/x
  3. Step 3: Cross multiply
    2,285.80x = 3,427.20 × 898.30
  4. Step 4: Simplify right side
    2,285.80x = 3,078,653.76
  5. Step 5: Solve for x
    x = 3,078,653.76/2,285.80
  6. Step 6: Final answer
    x = 1,346.86

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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.