Home / 1,434.24-1,966.36-1,408.32

Finding the Fourth Proportional to 1,434.24, 1,966.36 and 1,408.32

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Solution

The fourth proportional to 1,434.24, 1,966.36 and 1,408.32 is: 1,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.24 : 1,966.36 = 1,408.32 : x
  2. Step 2: Convert to fraction form
    1,434.24/1,966.36 = 1,408.32/x
  3. Step 3: Cross multiply
    1,434.24x = 1,966.36 × 1,408.32
  4. Step 4: Simplify right side
    1,434.24x = 2,769,264.12
  5. Step 5: Solve for x
    x = 2,769,264.12/1,434.24
  6. Step 6: Final answer
    x = 1,930.82

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.