Home / 1,529.89-2,111.27-866.73

Finding the Fourth Proportional to 1,529.89, 2,111.27 and 866.73

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Solution

The fourth proportional to 1,529.89, 2,111.27 and 866.73 is: 1,196.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.89 : 2,111.27 = 866.73 : x
  2. Step 2: Convert to fraction form
    1,529.89/2,111.27 = 866.73/x
  3. Step 3: Cross multiply
    1,529.89x = 2,111.27 × 866.73
  4. Step 4: Simplify right side
    1,529.89x = 1,829,901.05
  5. Step 5: Solve for x
    x = 1,829,901.05/1,529.89
  6. Step 6: Final answer
    x = 1,196.10

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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.