Home / 7,629.12-11,445.50-3,184.31

Finding the Fourth Proportional to 7,629.12, 11,445.50 and 3,184.31

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Solution

The fourth proportional to 7,629.12, 11,445.50 and 3,184.31 is: 4,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.12 : 11,445.50 = 3,184.31 : x
  2. Step 2: Convert to fraction form
    7,629.12/11,445.50 = 3,184.31/x
  3. Step 3: Cross multiply
    7,629.12x = 11,445.50 × 3,184.31
  4. Step 4: Simplify right side
    7,629.12x = 36,445,962.88
  5. Step 5: Solve for x
    x = 36,445,962.88/7,629.12
  6. Step 6: Final answer
    x = 4,777.22

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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.