Home / 1,634.17-2,254.53-1,209.81

Finding the Fourth Proportional to 1,634.17, 2,254.53 and 1,209.81

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Solution

The fourth proportional to 1,634.17, 2,254.53 and 1,209.81 is: 1,669.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.17 : 2,254.53 = 1,209.81 : x
  2. Step 2: Convert to fraction form
    1,634.17/2,254.53 = 1,209.81/x
  3. Step 3: Cross multiply
    1,634.17x = 2,254.53 × 1,209.81
  4. Step 4: Simplify right side
    1,634.17x = 2,727,539.95
  5. Step 5: Solve for x
    x = 2,727,539.95/1,634.17
  6. Step 6: Final answer
    x = 1,669.07

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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.