Home / 4,812.72-6,640.45-2,823.18

Finding the Fourth Proportional to 4,812.72, 6,640.45 and 2,823.18

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Solution

The fourth proportional to 4,812.72, 6,640.45 and 2,823.18 is: 3,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.72 : 6,640.45 = 2,823.18 : x
  2. Step 2: Convert to fraction form
    4,812.72/6,640.45 = 2,823.18/x
  3. Step 3: Cross multiply
    4,812.72x = 6,640.45 × 2,823.18
  4. Step 4: Simplify right side
    4,812.72x = 18,747,185.63
  5. Step 5: Solve for x
    x = 18,747,185.63/4,812.72
  6. Step 6: Final answer
    x = 3,895.34

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1.5x scale

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.