Home / 1,809.36-2,490.03-1,766.43

Finding the Fourth Proportional to 1,809.36, 2,490.03 and 1,766.43

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Solution

The fourth proportional to 1,809.36, 2,490.03 and 1,766.43 is: 2,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.36 : 2,490.03 = 1,766.43 : x
  2. Step 2: Convert to fraction form
    1,809.36/2,490.03 = 1,766.43/x
  3. Step 3: Cross multiply
    1,809.36x = 2,490.03 × 1,766.43
  4. Step 4: Simplify right side
    1,809.36x = 4,398,463.69
  5. Step 5: Solve for x
    x = 4,398,463.69/1,809.36
  6. Step 6: Final answer
    x = 2,430.95

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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.