Home / 2,109.16-3,161.94-1,490.92

Finding the Fourth Proportional to 2,109.16, 3,161.94 and 1,490.92

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Solution

The fourth proportional to 2,109.16, 3,161.94 and 1,490.92 is: 2,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.16 : 3,161.94 = 1,490.92 : x
  2. Step 2: Convert to fraction form
    2,109.16/3,161.94 = 1,490.92/x
  3. Step 3: Cross multiply
    2,109.16x = 3,161.94 × 1,490.92
  4. Step 4: Simplify right side
    2,109.16x = 4,714,213.08
  5. Step 5: Solve for x
    x = 4,714,213.08/2,109.16
  6. Step 6: Final answer
    x = 2,235.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.