Home / 1,033.27-1,426.19-640.06

Finding the Fourth Proportional to 1,033.27, 1,426.19 and 640.06

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Solution

The fourth proportional to 1,033.27, 1,426.19 and 640.06 is: 883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.27 : 1,426.19 = 640.06 : x
  2. Step 2: Convert to fraction form
    1,033.27/1,426.19 = 640.06/x
  3. Step 3: Cross multiply
    1,033.27x = 1,426.19 × 640.06
  4. Step 4: Simplify right side
    1,033.27x = 912,840.41
  5. Step 5: Solve for x
    x = 912,840.41/1,033.27
  6. Step 6: Final answer
    x = 883.45

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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.