Home / 2,153.35-3,231.01-1,277.59

Finding the Fourth Proportional to 2,153.35, 3,231.01 and 1,277.59

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Solution

The fourth proportional to 2,153.35, 3,231.01 and 1,277.59 is: 1,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.35 : 3,231.01 = 1,277.59 : x
  2. Step 2: Convert to fraction form
    2,153.35/3,231.01 = 1,277.59/x
  3. Step 3: Cross multiply
    2,153.35x = 3,231.01 × 1,277.59
  4. Step 4: Simplify right side
    2,153.35x = 4,127,906.07
  5. Step 5: Solve for x
    x = 4,127,906.07/2,153.35
  6. Step 6: Final answer
    x = 1,916.97

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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.