Home / 5,525.40-7,627.80-3,638.20

Finding the Fourth Proportional to 5,525.40, 7,627.80 and 3,638.20

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Solution

The fourth proportional to 5,525.40, 7,627.80 and 3,638.20 is: 5,022.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.40 : 7,627.80 = 3,638.20 : x
  2. Step 2: Convert to fraction form
    5,525.40/7,627.80 = 3,638.20/x
  3. Step 3: Cross multiply
    5,525.40x = 7,627.80 × 3,638.20
  4. Step 4: Simplify right side
    5,525.40x = 27,751,461.96
  5. Step 5: Solve for x
    x = 27,751,461.96/5,525.40
  6. Step 6: Final answer
    x = 5,022.53

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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.