Home / 1,834.61-2,531.22-1,172.12

Finding the Fourth Proportional to 1,834.61, 2,531.22 and 1,172.12

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Solution

The fourth proportional to 1,834.61, 2,531.22 and 1,172.12 is: 1,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834.61 : 2,531.22 = 1,172.12 : x
  2. Step 2: Convert to fraction form
    1,834.61/2,531.22 = 1,172.12/x
  3. Step 3: Cross multiply
    1,834.61x = 2,531.22 × 1,172.12
  4. Step 4: Simplify right side
    1,834.61x = 2,966,880.93
  5. Step 5: Solve for x
    x = 2,966,880.93/1,834.61
  6. Step 6: Final answer
    x = 1,617.18

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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.