Home / 1,422.58-2,133.87-1,135.84

Finding the Fourth Proportional to 1,422.58, 2,133.87 and 1,135.84

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Solution

The fourth proportional to 1,422.58, 2,133.87 and 1,135.84 is: 1,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.58 : 2,133.87 = 1,135.84 : x
  2. Step 2: Convert to fraction form
    1,422.58/2,133.87 = 1,135.84/x
  3. Step 3: Cross multiply
    1,422.58x = 2,133.87 × 1,135.84
  4. Step 4: Simplify right side
    1,422.58x = 2,423,729.57
  5. Step 5: Solve for x
    x = 2,423,729.57/1,422.58
  6. Step 6: Final answer
    x = 1,703.76

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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.