Home / 3,312.65-4,571.75-1,820.88

Finding the Fourth Proportional to 3,312.65, 4,571.75 and 1,820.88

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Solution

The fourth proportional to 3,312.65, 4,571.75 and 1,820.88 is: 2,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.65 : 4,571.75 = 1,820.88 : x
  2. Step 2: Convert to fraction form
    3,312.65/4,571.75 = 1,820.88/x
  3. Step 3: Cross multiply
    3,312.65x = 4,571.75 × 1,820.88
  4. Step 4: Simplify right side
    3,312.65x = 8,324,612.69
  5. Step 5: Solve for x
    x = 8,324,612.69/3,312.65
  6. Step 6: Final answer
    x = 2,512.97

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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.