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Finding the Fourth Proportional to 7,752.43, 11,629.95 and 3,590.74

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Solution

The fourth proportional to 7,752.43, 11,629.95 and 3,590.74 is: 5,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.43 : 11,629.95 = 3,590.74 : x
  2. Step 2: Convert to fraction form
    7,752.43/11,629.95 = 3,590.74/x
  3. Step 3: Cross multiply
    7,752.43x = 11,629.95 × 3,590.74
  4. Step 4: Simplify right side
    7,752.43x = 41,760,126.66
  5. Step 5: Solve for x
    x = 41,760,126.66/7,752.43
  6. Step 6: Final answer
    x = 5,386.71

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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.