Home / 3,887.70-5,366.99-2,472.81

Finding the Fourth Proportional to 3,887.70, 5,366.99 and 2,472.81

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Solution

The fourth proportional to 3,887.70, 5,366.99 and 2,472.81 is: 3,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.70 : 5,366.99 = 2,472.81 : x
  2. Step 2: Convert to fraction form
    3,887.70/5,366.99 = 2,472.81/x
  3. Step 3: Cross multiply
    3,887.70x = 5,366.99 × 2,472.81
  4. Step 4: Simplify right side
    3,887.70x = 13,271,534.18
  5. Step 5: Solve for x
    x = 13,271,534.18/3,887.70
  6. Step 6: Final answer
    x = 3,413.72

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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.