Home / 1,114.21-1,537.20-671.95

Finding the Fourth Proportional to 1,114.21, 1,537.20 and 671.95

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Solution

The fourth proportional to 1,114.21, 1,537.20 and 671.95 is: 927.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.21 : 1,537.20 = 671.95 : x
  2. Step 2: Convert to fraction form
    1,114.21/1,537.20 = 671.95/x
  3. Step 3: Cross multiply
    1,114.21x = 1,537.20 × 671.95
  4. Step 4: Simplify right side
    1,114.21x = 1,032,916.70
  5. Step 5: Solve for x
    x = 1,032,916.70/1,114.21
  6. Step 6: Final answer
    x = 927.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.