Home / 2,885.29-3,983.51-2,091.25

Finding the Fourth Proportional to 2,885.29, 3,983.51 and 2,091.25

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Solution

The fourth proportional to 2,885.29, 3,983.51 and 2,091.25 is: 2,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.29 : 3,983.51 = 2,091.25 : x
  2. Step 2: Convert to fraction form
    2,885.29/3,983.51 = 2,091.25/x
  3. Step 3: Cross multiply
    2,885.29x = 3,983.51 × 2,091.25
  4. Step 4: Simplify right side
    2,885.29x = 8,330,525.50
  5. Step 5: Solve for x
    x = 8,330,525.50/2,885.29
  6. Step 6: Final answer
    x = 2,887.24

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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.