Home / 6,541.21-9,812.63-2,157.49

Finding the Fourth Proportional to 6,541.21, 9,812.63 and 2,157.49

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Solution

The fourth proportional to 6,541.21, 9,812.63 and 2,157.49 is: 3,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,541.21 : 9,812.63 = 2,157.49 : x
  2. Step 2: Convert to fraction form
    6,541.21/9,812.63 = 2,157.49/x
  3. Step 3: Cross multiply
    6,541.21x = 9,812.63 × 2,157.49
  4. Step 4: Simplify right side
    6,541.21x = 21,170,651.10
  5. Step 5: Solve for x
    x = 21,170,651.10/6,541.21
  6. Step 6: Final answer
    x = 3,236.50

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1.5x scale

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.