Home / 3,153.15-4,353.21-2,091.24

Finding the Fourth Proportional to 3,153.15, 4,353.21 and 2,091.24

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Solution

The fourth proportional to 3,153.15, 4,353.21 and 2,091.24 is: 2,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.15 : 4,353.21 = 2,091.24 : x
  2. Step 2: Convert to fraction form
    3,153.15/4,353.21 = 2,091.24/x
  3. Step 3: Cross multiply
    3,153.15x = 4,353.21 × 2,091.24
  4. Step 4: Simplify right side
    3,153.15x = 9,103,606.88
  5. Step 5: Solve for x
    x = 9,103,606.88/3,153.15
  6. Step 6: Final answer
    x = 2,887.15

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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.