Home / 2,889.30-4,311.26-2,712.96

Finding the Fourth Proportional to 2,889.30, 4,311.26 and 2,712.96

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Solution

The fourth proportional to 2,889.30, 4,311.26 and 2,712.96 is: 4,048.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.30 : 4,311.26 = 2,712.96 : x
  2. Step 2: Convert to fraction form
    2,889.30/4,311.26 = 2,712.96/x
  3. Step 3: Cross multiply
    2,889.30x = 4,311.26 × 2,712.96
  4. Step 4: Simplify right side
    2,889.30x = 11,696,262.36
  5. Step 5: Solve for x
    x = 11,696,262.36/2,889.30
  6. Step 6: Final answer
    x = 4,048.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.