Home / 1,292.16-1,939.29-737.22

Finding the Fourth Proportional to 1,292.16, 1,939.29 and 737.22

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Solution

The fourth proportional to 1,292.16, 1,939.29 and 737.22 is: 1,106.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.16 : 1,939.29 = 737.22 : x
  2. Step 2: Convert to fraction form
    1,292.16/1,939.29 = 737.22/x
  3. Step 3: Cross multiply
    1,292.16x = 1,939.29 × 737.22
  4. Step 4: Simplify right side
    1,292.16x = 1,429,683.37
  5. Step 5: Solve for x
    x = 1,429,683.37/1,292.16
  6. Step 6: Final answer
    x = 1,106.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.