Home / 1,557.55-2,149.09-894.43

Finding the Fourth Proportional to 1,557.55, 2,149.09 and 894.43

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Solution

The fourth proportional to 1,557.55, 2,149.09 and 894.43 is: 1,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.55 : 2,149.09 = 894.43 : x
  2. Step 2: Convert to fraction form
    1,557.55/2,149.09 = 894.43/x
  3. Step 3: Cross multiply
    1,557.55x = 2,149.09 × 894.43
  4. Step 4: Simplify right side
    1,557.55x = 1,922,210.57
  5. Step 5: Solve for x
    x = 1,922,210.57/1,557.55
  6. Step 6: Final answer
    x = 1,234.12

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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.