Home / 2,851.22-4,276.20-902.90

Finding the Fourth Proportional to 2,851.22, 4,276.20 and 902.90

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Solution

The fourth proportional to 2,851.22, 4,276.20 and 902.90 is: 1,354.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.22 : 4,276.20 = 902.90 : x
  2. Step 2: Convert to fraction form
    2,851.22/4,276.20 = 902.90/x
  3. Step 3: Cross multiply
    2,851.22x = 4,276.20 × 902.90
  4. Step 4: Simplify right side
    2,851.22x = 3,860,980.98
  5. Step 5: Solve for x
    x = 3,860,980.98/2,851.22
  6. Step 6: Final answer
    x = 1,354.15

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1.5x scale

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.