Home / 3,015.50-4,161.40-1,967.57

Finding the Fourth Proportional to 3,015.50, 4,161.40 and 1,967.57

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Solution

The fourth proportional to 3,015.50, 4,161.40 and 1,967.57 is: 2,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.50 : 4,161.40 = 1,967.57 : x
  2. Step 2: Convert to fraction form
    3,015.50/4,161.40 = 1,967.57/x
  3. Step 3: Cross multiply
    3,015.50x = 4,161.40 × 1,967.57
  4. Step 4: Simplify right side
    3,015.50x = 8,187,824.99
  5. Step 5: Solve for x
    x = 8,187,824.99/3,015.50
  6. Step 6: Final answer
    x = 2,715.25

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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.