Home / 1,434.21-2,150.43-1,261.23

Finding the Fourth Proportional to 1,434.21, 2,150.43 and 1,261.23

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Solution

The fourth proportional to 1,434.21, 2,150.43 and 1,261.23 is: 1,891.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.21 : 2,150.43 = 1,261.23 : x
  2. Step 2: Convert to fraction form
    1,434.21/2,150.43 = 1,261.23/x
  3. Step 3: Cross multiply
    1,434.21x = 2,150.43 × 1,261.23
  4. Step 4: Simplify right side
    1,434.21x = 2,712,186.83
  5. Step 5: Solve for x
    x = 2,712,186.83/1,434.21
  6. Step 6: Final answer
    x = 1,891.07

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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.