Home / 4,172.06-6,256.26-1,981.41

Finding the Fourth Proportional to 4,172.06, 6,256.26 and 1,981.41

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Solution

The fourth proportional to 4,172.06, 6,256.26 and 1,981.41 is: 2,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.06 : 6,256.26 = 1,981.41 : x
  2. Step 2: Convert to fraction form
    4,172.06/6,256.26 = 1,981.41/x
  3. Step 3: Cross multiply
    4,172.06x = 6,256.26 × 1,981.41
  4. Step 4: Simplify right side
    4,172.06x = 12,396,216.13
  5. Step 5: Solve for x
    x = 12,396,216.13/4,172.06
  6. Step 6: Final answer
    x = 2,971.25

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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.