Home / 1,764.81-2,435.27-1,143.81

Finding the Fourth Proportional to 1,764.81, 2,435.27 and 1,143.81

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Solution

The fourth proportional to 1,764.81, 2,435.27 and 1,143.81 is: 1,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.81 : 2,435.27 = 1,143.81 : x
  2. Step 2: Convert to fraction form
    1,764.81/2,435.27 = 1,143.81/x
  3. Step 3: Cross multiply
    1,764.81x = 2,435.27 × 1,143.81
  4. Step 4: Simplify right side
    1,764.81x = 2,785,480.46
  5. Step 5: Solve for x
    x = 2,785,480.46/1,764.81
  6. Step 6: Final answer
    x = 1,578.35

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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.