Home / 6,541.47-9,811.36-2,157.84

Finding the Fourth Proportional to 6,541.47, 9,811.36 and 2,157.84

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Solution

The fourth proportional to 6,541.47, 9,811.36 and 2,157.84 is: 3,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,541.47 : 9,811.36 = 2,157.84 : x
  2. Step 2: Convert to fraction form
    6,541.47/9,811.36 = 2,157.84/x
  3. Step 3: Cross multiply
    6,541.47x = 9,811.36 × 2,157.84
  4. Step 4: Simplify right side
    6,541.47x = 21,171,345.06
  5. Step 5: Solve for x
    x = 21,171,345.06/6,541.47
  6. Step 6: Final answer
    x = 3,236.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.