Home / 2,816.91-3,889.25-1,755.10

Finding the Fourth Proportional to 2,816.91, 3,889.25 and 1,755.10

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Solution

The fourth proportional to 2,816.91, 3,889.25 and 1,755.10 is: 2,423.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.91 : 3,889.25 = 1,755.10 : x
  2. Step 2: Convert to fraction form
    2,816.91/3,889.25 = 1,755.10/x
  3. Step 3: Cross multiply
    2,816.91x = 3,889.25 × 1,755.10
  4. Step 4: Simplify right side
    2,816.91x = 6,826,025.34
  5. Step 5: Solve for x
    x = 6,826,025.34/2,816.91
  6. Step 6: Final answer
    x = 2,423.23

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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.