Home / 2,571.75-3,549.15-1,688.85

Finding the Fourth Proportional to 2,571.75, 3,549.15 and 1,688.85

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Solution

The fourth proportional to 2,571.75, 3,549.15 and 1,688.85 is: 2,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.75 : 3,549.15 = 1,688.85 : x
  2. Step 2: Convert to fraction form
    2,571.75/3,549.15 = 1,688.85/x
  3. Step 3: Cross multiply
    2,571.75x = 3,549.15 × 1,688.85
  4. Step 4: Simplify right side
    2,571.75x = 5,993,981.98
  5. Step 5: Solve for x
    x = 5,993,981.98/2,571.75
  6. Step 6: Final answer
    x = 2,330.70

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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.