Home / 3,108.75-4,665.15-1,569.75

Finding the Fourth Proportional to 3,108.75, 4,665.15 and 1,569.75

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Solution

The fourth proportional to 3,108.75, 4,665.15 and 1,569.75 is: 2,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.75 : 4,665.15 = 1,569.75 : x
  2. Step 2: Convert to fraction form
    3,108.75/4,665.15 = 1,569.75/x
  3. Step 3: Cross multiply
    3,108.75x = 4,665.15 × 1,569.75
  4. Step 4: Simplify right side
    3,108.75x = 7,323,119.21
  5. Step 5: Solve for x
    x = 7,323,119.21/3,108.75
  6. Step 6: Final answer
    x = 2,355.65

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1.5x scale

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.