Home / 1,134.25-1,701.34-312.57

Finding the Fourth Proportional to 1,134.25, 1,701.34 and 312.57

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Solution

The fourth proportional to 1,134.25, 1,701.34 and 312.57 is: 468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.25 : 1,701.34 = 312.57 : x
  2. Step 2: Convert to fraction form
    1,134.25/1,701.34 = 312.57/x
  3. Step 3: Cross multiply
    1,134.25x = 1,701.34 × 312.57
  4. Step 4: Simplify right side
    1,134.25x = 531,787.06
  5. Step 5: Solve for x
    x = 531,787.06/1,134.25
  6. Step 6: Final answer
    x = 468.85

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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.