Home / 2,091.99-2,886.84-1,253.15

Finding the Fourth Proportional to 2,091.99, 2,886.84 and 1,253.15

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Solution

The fourth proportional to 2,091.99, 2,886.84 and 1,253.15 is: 1,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.99 : 2,886.84 = 1,253.15 : x
  2. Step 2: Convert to fraction form
    2,091.99/2,886.84 = 1,253.15/x
  3. Step 3: Cross multiply
    2,091.99x = 2,886.84 × 1,253.15
  4. Step 4: Simplify right side
    2,091.99x = 3,617,650.76
  5. Step 5: Solve for x
    x = 3,617,650.76/2,091.99
  6. Step 6: Final answer
    x = 1,729.29

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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.