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Finding the Fourth Proportional to 7,185.35, 9,917.16 and 4,041.54

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Solution

The fourth proportional to 7,185.35, 9,917.16 and 4,041.54 is: 5,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.35 : 9,917.16 = 4,041.54 : x
  2. Step 2: Convert to fraction form
    7,185.35/9,917.16 = 4,041.54/x
  3. Step 3: Cross multiply
    7,185.35x = 9,917.16 × 4,041.54
  4. Step 4: Simplify right side
    7,185.35x = 40,080,569.47
  5. Step 5: Solve for x
    x = 40,080,569.47/7,185.35
  6. Step 6: Final answer
    x = 5,578.10

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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.