Home / 1,809.16-2,700.76-1,729.38

Finding the Fourth Proportional to 1,809.16, 2,700.76 and 1,729.38

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Solution

The fourth proportional to 1,809.16, 2,700.76 and 1,729.38 is: 2,581.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.16 : 2,700.76 = 1,729.38 : x
  2. Step 2: Convert to fraction form
    1,809.16/2,700.76 = 1,729.38/x
  3. Step 3: Cross multiply
    1,809.16x = 2,700.76 × 1,729.38
  4. Step 4: Simplify right side
    1,809.16x = 4,670,640.33
  5. Step 5: Solve for x
    x = 4,670,640.33/1,809.16
  6. Step 6: Final answer
    x = 2,581.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.