Home / 1,114.21-1,671.25-292.47

Finding the Fourth Proportional to 1,114.21, 1,671.25 and 292.47

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Solution

The fourth proportional to 1,114.21, 1,671.25 and 292.47 is: 438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.21 : 1,671.25 = 292.47 : x
  2. Step 2: Convert to fraction form
    1,114.21/1,671.25 = 292.47/x
  3. Step 3: Cross multiply
    1,114.21x = 1,671.25 × 292.47
  4. Step 4: Simplify right side
    1,114.21x = 488,790.49
  5. Step 5: Solve for x
    x = 488,790.49/1,114.21
  6. Step 6: Final answer
    x = 438.69

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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.