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Finding the Fourth Proportional to 7,617.81, 10,512.50 and 4,260.58

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Solution

The fourth proportional to 7,617.81, 10,512.50 and 4,260.58 is: 5,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,617.81 : 10,512.50 = 4,260.58 : x
  2. Step 2: Convert to fraction form
    7,617.81/10,512.50 = 4,260.58/x
  3. Step 3: Cross multiply
    7,617.81x = 10,512.50 × 4,260.58
  4. Step 4: Simplify right side
    7,617.81x = 44,789,347.25
  5. Step 5: Solve for x
    x = 44,789,347.25/7,617.81
  6. Step 6: Final answer
    x = 5,879.56

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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.