Home / 4,889.88-7,334.46-1,426.68

Finding the Fourth Proportional to 4,889.88, 7,334.46 and 1,426.68

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Solution

The fourth proportional to 4,889.88, 7,334.46 and 1,426.68 is: 2,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.88 : 7,334.46 = 1,426.68 : x
  2. Step 2: Convert to fraction form
    4,889.88/7,334.46 = 1,426.68/x
  3. Step 3: Cross multiply
    4,889.88x = 7,334.46 × 1,426.68
  4. Step 4: Simplify right side
    4,889.88x = 10,463,927.39
  5. Step 5: Solve for x
    x = 10,463,927.39/4,889.88
  6. Step 6: Final answer
    x = 2,139.91

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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.