Home / 2,859.88-4,286.94-1,126.76

Finding the Fourth Proportional to 2,859.88, 4,286.94 and 1,126.76

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Solution

The fourth proportional to 2,859.88, 4,286.94 and 1,126.76 is: 1,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.88 : 4,286.94 = 1,126.76 : x
  2. Step 2: Convert to fraction form
    2,859.88/4,286.94 = 1,126.76/x
  3. Step 3: Cross multiply
    2,859.88x = 4,286.94 × 1,126.76
  4. Step 4: Simplify right side
    2,859.88x = 4,830,352.51
  5. Step 5: Solve for x
    x = 4,830,352.51/2,859.88
  6. Step 6: Final answer
    x = 1,689.01

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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.