Home / 2,888.17-3,983.40-2,091.60

Finding the Fourth Proportional to 2,888.17, 3,983.40 and 2,091.60

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Solution

The fourth proportional to 2,888.17, 3,983.40 and 2,091.60 is: 2,884.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.17 : 3,983.40 = 2,091.60 : x
  2. Step 2: Convert to fraction form
    2,888.17/3,983.40 = 2,091.60/x
  3. Step 3: Cross multiply
    2,888.17x = 3,983.40 × 2,091.60
  4. Step 4: Simplify right side
    2,888.17x = 8,331,679.44
  5. Step 5: Solve for x
    x = 8,331,679.44/2,888.17
  6. Step 6: Final answer
    x = 2,884.76

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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.