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Finding the Fourth Proportional to 2,793.76, 3,854.81 and 1,798.90

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Solution

The fourth proportional to 2,793.76, 3,854.81 and 1,798.90 is: 2,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.76 : 3,854.81 = 1,798.90 : x
  2. Step 2: Convert to fraction form
    2,793.76/3,854.81 = 1,798.90/x
  3. Step 3: Cross multiply
    2,793.76x = 3,854.81 × 1,798.90
  4. Step 4: Simplify right side
    2,793.76x = 6,934,412.57
  5. Step 5: Solve for x
    x = 6,934,412.57/2,793.76
  6. Step 6: Final answer
    x = 2,482.11

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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.