Home / 1,489.56-2,228.85-1,161.51

Finding the Fourth Proportional to 1,489.56, 2,228.85 and 1,161.51

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Solution

The fourth proportional to 1,489.56, 2,228.85 and 1,161.51 is: 1,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.56 : 2,228.85 = 1,161.51 : x
  2. Step 2: Convert to fraction form
    1,489.56/2,228.85 = 1,161.51/x
  3. Step 3: Cross multiply
    1,489.56x = 2,228.85 × 1,161.51
  4. Step 4: Simplify right side
    1,489.56x = 2,588,831.56
  5. Step 5: Solve for x
    x = 2,588,831.56/1,489.56
  6. Step 6: Final answer
    x = 1,737.98

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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.