Home / 7,891.32-10,889.79-4,534.02

Finding the Fourth Proportional to 7,891.32, 10,889.79 and 4,534.02

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Solution

The fourth proportional to 7,891.32, 10,889.79 and 4,534.02 is: 6,256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.32 : 10,889.79 = 4,534.02 : x
  2. Step 2: Convert to fraction form
    7,891.32/10,889.79 = 4,534.02/x
  3. Step 3: Cross multiply
    7,891.32x = 10,889.79 × 4,534.02
  4. Step 4: Simplify right side
    7,891.32x = 49,374,525.66
  5. Step 5: Solve for x
    x = 49,374,525.66/7,891.32
  6. Step 6: Final answer
    x = 6,256.81

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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.