Home / 1,944.17-2,665.45-1,909.20

Finding the Fourth Proportional to 1,944.17, 2,665.45 and 1,909.20

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Solution

The fourth proportional to 1,944.17, 2,665.45 and 1,909.20 is: 2,617.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.17 : 2,665.45 = 1,909.20 : x
  2. Step 2: Convert to fraction form
    1,944.17/2,665.45 = 1,909.20/x
  3. Step 3: Cross multiply
    1,944.17x = 2,665.45 × 1,909.20
  4. Step 4: Simplify right side
    1,944.17x = 5,088,872.37
  5. Step 5: Solve for x
    x = 5,088,872.37/1,944.17
  6. Step 6: Final answer
    x = 2,617.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.