Home / 2,812.98-3,877.65-2,026.74

Finding the Fourth Proportional to 2,812.98, 3,877.65 and 2,026.74

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Solution

The fourth proportional to 2,812.98, 3,877.65 and 2,026.74 is: 2,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.98 : 3,877.65 = 2,026.74 : x
  2. Step 2: Convert to fraction form
    2,812.98/3,877.65 = 2,026.74/x
  3. Step 3: Cross multiply
    2,812.98x = 3,877.65 × 2,026.74
  4. Step 4: Simplify right side
    2,812.98x = 7,858,988.36
  5. Step 5: Solve for x
    x = 7,858,988.36/2,812.98
  6. Step 6: Final answer
    x = 2,793.83

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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.