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Finding the Fourth Proportional to 7,160.64, 9,879.36 and 5,483.52

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Solution

The fourth proportional to 7,160.64, 9,879.36 and 5,483.52 is: 7,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.64 : 9,879.36 = 5,483.52 : x
  2. Step 2: Convert to fraction form
    7,160.64/9,879.36 = 5,483.52/x
  3. Step 3: Cross multiply
    7,160.64x = 9,879.36 × 5,483.52
  4. Step 4: Simplify right side
    7,160.64x = 54,173,668.15
  5. Step 5: Solve for x
    x = 54,173,668.15/7,160.64
  6. Step 6: Final answer
    x = 7,565.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.