Home / 2,600.28-3,901.77-1,213.22

Finding the Fourth Proportional to 2,600.28, 3,901.77 and 1,213.22

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Solution

The fourth proportional to 2,600.28, 3,901.77 and 1,213.22 is: 1,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.28 : 3,901.77 = 1,213.22 : x
  2. Step 2: Convert to fraction form
    2,600.28/3,901.77 = 1,213.22/x
  3. Step 3: Cross multiply
    2,600.28x = 3,901.77 × 1,213.22
  4. Step 4: Simplify right side
    2,600.28x = 4,733,685.89
  5. Step 5: Solve for x
    x = 4,733,685.89/2,600.28
  6. Step 6: Final answer
    x = 1,820.45

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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.