Home / 1,474.88-2,035.23-811.76

Finding the Fourth Proportional to 1,474.88, 2,035.23 and 811.76

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Solution

The fourth proportional to 1,474.88, 2,035.23 and 811.76 is: 1,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.88 : 2,035.23 = 811.76 : x
  2. Step 2: Convert to fraction form
    1,474.88/2,035.23 = 811.76/x
  3. Step 3: Cross multiply
    1,474.88x = 2,035.23 × 811.76
  4. Step 4: Simplify right side
    1,474.88x = 1,652,118.30
  5. Step 5: Solve for x
    x = 1,652,118.30/1,474.88
  6. Step 6: Final answer
    x = 1,120.17

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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.