Home / 6,436.44-8,880.75-3,918.51

Finding the Fourth Proportional to 6,436.44, 8,880.75 and 3,918.51

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Solution

The fourth proportional to 6,436.44, 8,880.75 and 3,918.51 is: 5,406.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.44 : 8,880.75 = 3,918.51 : x
  2. Step 2: Convert to fraction form
    6,436.44/8,880.75 = 3,918.51/x
  3. Step 3: Cross multiply
    6,436.44x = 8,880.75 × 3,918.51
  4. Step 4: Simplify right side
    6,436.44x = 34,799,307.68
  5. Step 5: Solve for x
    x = 34,799,307.68/6,436.44
  6. Step 6: Final answer
    x = 5,406.61

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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.