Home / 2,939.35-4,057.57-1,760.20

Finding the Fourth Proportional to 2,939.35, 4,057.57 and 1,760.20

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Solution

The fourth proportional to 2,939.35, 4,057.57 and 1,760.20 is: 2,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.35 : 4,057.57 = 1,760.20 : x
  2. Step 2: Convert to fraction form
    2,939.35/4,057.57 = 1,760.20/x
  3. Step 3: Cross multiply
    2,939.35x = 4,057.57 × 1,760.20
  4. Step 4: Simplify right side
    2,939.35x = 7,142,134.71
  5. Step 5: Solve for x
    x = 7,142,134.71/2,939.35
  6. Step 6: Final answer
    x = 2,429.83

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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.