Home / 5,220.63-7,204.61-2,982.87

Finding the Fourth Proportional to 5,220.63, 7,204.61 and 2,982.87

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Solution

The fourth proportional to 5,220.63, 7,204.61 and 2,982.87 is: 4,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.63 : 7,204.61 = 2,982.87 : x
  2. Step 2: Convert to fraction form
    5,220.63/7,204.61 = 2,982.87/x
  3. Step 3: Cross multiply
    5,220.63x = 7,204.61 × 2,982.87
  4. Step 4: Simplify right side
    5,220.63x = 21,490,422.49
  5. Step 5: Solve for x
    x = 21,490,422.49/5,220.63
  6. Step 6: Final answer
    x = 4,116.44

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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.