Home / 2,289.86-3,160.01-1,295.21

Finding the Fourth Proportional to 2,289.86, 3,160.01 and 1,295.21

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Solution

The fourth proportional to 2,289.86, 3,160.01 and 1,295.21 is: 1,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.86 : 3,160.01 = 1,295.21 : x
  2. Step 2: Convert to fraction form
    2,289.86/3,160.01 = 1,295.21/x
  3. Step 3: Cross multiply
    2,289.86x = 3,160.01 × 1,295.21
  4. Step 4: Simplify right side
    2,289.86x = 4,092,854.28
  5. Step 5: Solve for x
    x = 4,092,854.28/2,289.86
  6. Step 6: Final answer
    x = 1,787.39

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1.5x scale

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.