Home / 5,220.80-7,204.20-3,124.88

Finding the Fourth Proportional to 5,220.80, 7,204.20 and 3,124.88

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Solution

The fourth proportional to 5,220.80, 7,204.20 and 3,124.88 is: 4,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.80 : 7,204.20 = 3,124.88 : x
  2. Step 2: Convert to fraction form
    5,220.80/7,204.20 = 3,124.88/x
  3. Step 3: Cross multiply
    5,220.80x = 7,204.20 × 3,124.88
  4. Step 4: Simplify right side
    5,220.80x = 22,512,260.50
  5. Step 5: Solve for x
    x = 22,512,260.50/5,220.80
  6. Step 6: Final answer
    x = 4,312.03

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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.