Home / 2,289.90-3,159.86-1,295.27

Finding the Fourth Proportional to 2,289.90, 3,159.86 and 1,295.27

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Solution

The fourth proportional to 2,289.90, 3,159.86 and 1,295.27 is: 1,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.90 : 3,159.86 = 1,295.27 : x
  2. Step 2: Convert to fraction form
    2,289.90/3,159.86 = 1,295.27/x
  3. Step 3: Cross multiply
    2,289.90x = 3,159.86 × 1,295.27
  4. Step 4: Simplify right side
    2,289.90x = 4,092,849.59
  5. Step 5: Solve for x
    x = 4,092,849.59/2,289.90
  6. Step 6: Final answer
    x = 1,787.35

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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.