Home / 2,271.60-3,407.22-628.20

Finding the Fourth Proportional to 2,271.60, 3,407.22 and 628.20

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Solution

The fourth proportional to 2,271.60, 3,407.22 and 628.20 is: 942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.60 : 3,407.22 = 628.20 : x
  2. Step 2: Convert to fraction form
    2,271.60/3,407.22 = 628.20/x
  3. Step 3: Cross multiply
    2,271.60x = 3,407.22 × 628.20
  4. Step 4: Simplify right side
    2,271.60x = 2,140,415.60
  5. Step 5: Solve for x
    x = 2,140,415.60/2,271.60
  6. Step 6: Final answer
    x = 942.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.