Home / 5,220.26-7,202.19-2,980.53

Finding the Fourth Proportional to 5,220.26, 7,202.19 and 2,980.53

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Solution

The fourth proportional to 5,220.26, 7,202.19 and 2,980.53 is: 4,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.26 : 7,202.19 = 2,980.53 : x
  2. Step 2: Convert to fraction form
    5,220.26/7,202.19 = 2,980.53/x
  3. Step 3: Cross multiply
    5,220.26x = 7,202.19 × 2,980.53
  4. Step 4: Simplify right side
    5,220.26x = 21,466,343.36
  5. Step 5: Solve for x
    x = 21,466,343.36/5,220.26
  6. Step 6: Final answer
    x = 4,112.13

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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.