Home / 1,789.18-2,683.75-556.58

Finding the Fourth Proportional to 1,789.18, 2,683.75 and 556.58

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Solution

The fourth proportional to 1,789.18, 2,683.75 and 556.58 is: 834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.18 : 2,683.75 = 556.58 : x
  2. Step 2: Convert to fraction form
    1,789.18/2,683.75 = 556.58/x
  3. Step 3: Cross multiply
    1,789.18x = 2,683.75 × 556.58
  4. Step 4: Simplify right side
    1,789.18x = 1,493,718.79
  5. Step 5: Solve for x
    x = 1,493,718.79/1,789.18
  6. Step 6: Final answer
    x = 834.86

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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.