Home / 1,563.73-2,158.11-1,170.07

Finding the Fourth Proportional to 1,563.73, 2,158.11 and 1,170.07

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Solution

The fourth proportional to 1,563.73, 2,158.11 and 1,170.07 is: 1,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.73 : 2,158.11 = 1,170.07 : x
  2. Step 2: Convert to fraction form
    1,563.73/2,158.11 = 1,170.07/x
  3. Step 3: Cross multiply
    1,563.73x = 2,158.11 × 1,170.07
  4. Step 4: Simplify right side
    1,563.73x = 2,525,139.77
  5. Step 5: Solve for x
    x = 2,525,139.77/1,563.73
  6. Step 6: Final answer
    x = 1,614.82

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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.