Home / 7,629.20-10,528.31-4,272.02

Finding the Fourth Proportional to 7,629.20, 10,528.31 and 4,272.02

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Solution

The fourth proportional to 7,629.20, 10,528.31 and 4,272.02 is: 5,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.20 : 10,528.31 = 4,272.02 : x
  2. Step 2: Convert to fraction form
    7,629.20/10,528.31 = 4,272.02/x
  3. Step 3: Cross multiply
    7,629.20x = 10,528.31 × 4,272.02
  4. Step 4: Simplify right side
    7,629.20x = 44,977,076.88
  5. Step 5: Solve for x
    x = 44,977,076.88/7,629.20
  6. Step 6: Final answer
    x = 5,895.39

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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.