Home / 7,985.52-11,020.60-4,629.20

Finding the Fourth Proportional to 7,985.52, 11,020.60 and 4,629.20

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Solution

The fourth proportional to 7,985.52, 11,020.60 and 4,629.20 is: 6,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.52 : 11,020.60 = 4,629.20 : x
  2. Step 2: Convert to fraction form
    7,985.52/11,020.60 = 4,629.20/x
  3. Step 3: Cross multiply
    7,985.52x = 11,020.60 × 4,629.20
  4. Step 4: Simplify right side
    7,985.52x = 51,016,561.52
  5. Step 5: Solve for x
    x = 51,016,561.52/7,985.52
  6. Step 6: Final answer
    x = 6,388.63

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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.