Home / 7,185.84-9,917.48-4,042.32

Finding the Fourth Proportional to 7,185.84, 9,917.48 and 4,042.32

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Solution

The fourth proportional to 7,185.84, 9,917.48 and 4,042.32 is: 5,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.84 : 9,917.48 = 4,042.32 : x
  2. Step 2: Convert to fraction form
    7,185.84/9,917.48 = 4,042.32/x
  3. Step 3: Cross multiply
    7,185.84x = 9,917.48 × 4,042.32
  4. Step 4: Simplify right side
    7,185.84x = 40,089,627.75
  5. Step 5: Solve for x
    x = 40,089,627.75/7,185.84
  6. Step 6: Final answer
    x = 5,578.98

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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.