Home / 2,769.76-3,822.50-1,591.21

Finding the Fourth Proportional to 2,769.76, 3,822.50 and 1,591.21

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Solution

The fourth proportional to 2,769.76, 3,822.50 and 1,591.21 is: 2,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.76 : 3,822.50 = 1,591.21 : x
  2. Step 2: Convert to fraction form
    2,769.76/3,822.50 = 1,591.21/x
  3. Step 3: Cross multiply
    2,769.76x = 3,822.50 × 1,591.21
  4. Step 4: Simplify right side
    2,769.76x = 6,082,400.23
  5. Step 5: Solve for x
    x = 6,082,400.23/2,769.76
  6. Step 6: Final answer
    x = 2,196.00

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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.