Home / 4,512.31-6,768.45-1,225.40

Finding the Fourth Proportional to 4,512.31, 6,768.45 and 1,225.40

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Solution

The fourth proportional to 4,512.31, 6,768.45 and 1,225.40 is: 1,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,512.31 : 6,768.45 = 1,225.40 : x
  2. Step 2: Convert to fraction form
    4,512.31/6,768.45 = 1,225.40/x
  3. Step 3: Cross multiply
    4,512.31x = 6,768.45 × 1,225.40
  4. Step 4: Simplify right side
    4,512.31x = 8,294,084.05
  5. Step 5: Solve for x
    x = 8,294,084.05/4,512.31
  6. Step 6: Final answer
    x = 1,838.10

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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.