Home / 2,079.75-2,869.66-1,293.45

Finding the Fourth Proportional to 2,079.75, 2,869.66 and 1,293.45

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Solution

The fourth proportional to 2,079.75, 2,869.66 and 1,293.45 is: 1,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.75 : 2,869.66 = 1,293.45 : x
  2. Step 2: Convert to fraction form
    2,079.75/2,869.66 = 1,293.45/x
  3. Step 3: Cross multiply
    2,079.75x = 2,869.66 × 1,293.45
  4. Step 4: Simplify right side
    2,079.75x = 3,711,761.73
  5. Step 5: Solve for x
    x = 3,711,761.73/2,079.75
  6. Step 6: Final answer
    x = 1,784.72

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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.