Home / 1,939.96-2,677.08-1,153.56

Finding the Fourth Proportional to 1,939.96, 2,677.08 and 1,153.56

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Solution

The fourth proportional to 1,939.96, 2,677.08 and 1,153.56 is: 1,591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.96 : 2,677.08 = 1,153.56 : x
  2. Step 2: Convert to fraction form
    1,939.96/2,677.08 = 1,153.56/x
  3. Step 3: Cross multiply
    1,939.96x = 2,677.08 × 1,153.56
  4. Step 4: Simplify right side
    1,939.96x = 3,088,172.40
  5. Step 5: Solve for x
    x = 3,088,172.40/1,939.96
  6. Step 6: Final answer
    x = 1,591.87

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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.