Home / 1,558.26-2,334.51-787.86

Finding the Fourth Proportional to 1,558.26, 2,334.51 and 787.86

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Solution

The fourth proportional to 1,558.26, 2,334.51 and 787.86 is: 1,180.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.26 : 2,334.51 = 787.86 : x
  2. Step 2: Convert to fraction form
    1,558.26/2,334.51 = 787.86/x
  3. Step 3: Cross multiply
    1,558.26x = 2,334.51 × 787.86
  4. Step 4: Simplify right side
    1,558.26x = 1,839,267.05
  5. Step 5: Solve for x
    x = 1,839,267.05/1,558.26
  6. Step 6: Final answer
    x = 1,180.33

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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.