Home / 2,789.96-3,842.75-2,079.53

Finding the Fourth Proportional to 2,789.96, 3,842.75 and 2,079.53

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Solution

The fourth proportional to 2,789.96, 3,842.75 and 2,079.53 is: 2,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.96 : 3,842.75 = 2,079.53 : x
  2. Step 2: Convert to fraction form
    2,789.96/3,842.75 = 2,079.53/x
  3. Step 3: Cross multiply
    2,789.96x = 3,842.75 × 2,079.53
  4. Step 4: Simplify right side
    2,789.96x = 7,991,128.71
  5. Step 5: Solve for x
    x = 7,991,128.71/2,789.96
  6. Step 6: Final answer
    x = 2,864.24

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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.