Home / 7,180.72-9,904.02-4,789.60

Finding the Fourth Proportional to 7,180.72, 9,904.02 and 4,789.60

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Solution

The fourth proportional to 7,180.72, 9,904.02 and 4,789.60 is: 6,606.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.72 : 9,904.02 = 4,789.60 : x
  2. Step 2: Convert to fraction form
    7,180.72/9,904.02 = 4,789.60/x
  3. Step 3: Cross multiply
    7,180.72x = 9,904.02 × 4,789.60
  4. Step 4: Simplify right side
    7,180.72x = 47,436,294.19
  5. Step 5: Solve for x
    x = 47,436,294.19/7,180.72
  6. Step 6: Final answer
    x = 6,606.06

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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.