Home / 2,285.90-3,154.55-1,237.96

Finding the Fourth Proportional to 2,285.90, 3,154.55 and 1,237.96

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Solution

The fourth proportional to 2,285.90, 3,154.55 and 1,237.96 is: 1,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.90 : 3,154.55 = 1,237.96 : x
  2. Step 2: Convert to fraction form
    2,285.90/3,154.55 = 1,237.96/x
  3. Step 3: Cross multiply
    2,285.90x = 3,154.55 × 1,237.96
  4. Step 4: Simplify right side
    2,285.90x = 3,905,204.47
  5. Step 5: Solve for x
    x = 3,905,204.47/2,285.90
  6. Step 6: Final answer
    x = 1,708.39

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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.