Home / 3,811.50-5,717.47-1,471.51

Finding the Fourth Proportional to 3,811.50, 5,717.47 and 1,471.51

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Solution

The fourth proportional to 3,811.50, 5,717.47 and 1,471.51 is: 2,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.50 : 5,717.47 = 1,471.51 : x
  2. Step 2: Convert to fraction form
    3,811.50/5,717.47 = 1,471.51/x
  3. Step 3: Cross multiply
    3,811.50x = 5,717.47 × 1,471.51
  4. Step 4: Simplify right side
    3,811.50x = 8,413,314.28
  5. Step 5: Solve for x
    x = 8,413,314.28/3,811.50
  6. Step 6: Final answer
    x = 2,207.35

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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.