Home / 1,671.28-2,505.22-1,122.19

Finding the Fourth Proportional to 1,671.28, 2,505.22 and 1,122.19

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Solution

The fourth proportional to 1,671.28, 2,505.22 and 1,122.19 is: 1,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.28 : 2,505.22 = 1,122.19 : x
  2. Step 2: Convert to fraction form
    1,671.28/2,505.22 = 1,122.19/x
  3. Step 3: Cross multiply
    1,671.28x = 2,505.22 × 1,122.19
  4. Step 4: Simplify right side
    1,671.28x = 2,811,332.83
  5. Step 5: Solve for x
    x = 2,811,332.83/1,671.28
  6. Step 6: Final answer
    x = 1,682.14

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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.