Home / 2,057.20-3,085.80-902.68

Finding the Fourth Proportional to 2,057.20, 3,085.80 and 902.68

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Solution

The fourth proportional to 2,057.20, 3,085.80 and 902.68 is: 1,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.20 : 3,085.80 = 902.68 : x
  2. Step 2: Convert to fraction form
    2,057.20/3,085.80 = 902.68/x
  3. Step 3: Cross multiply
    2,057.20x = 3,085.80 × 902.68
  4. Step 4: Simplify right side
    2,057.20x = 2,785,489.94
  5. Step 5: Solve for x
    x = 2,785,489.94/2,057.20
  6. Step 6: Final answer
    x = 1,354.02

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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.