Home / 6,261.57-8,640.87-3,428.91

Finding the Fourth Proportional to 6,261.57, 8,640.87 and 3,428.91

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Solution

The fourth proportional to 6,261.57, 8,640.87 and 3,428.91 is: 4,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.57 : 8,640.87 = 3,428.91 : x
  2. Step 2: Convert to fraction form
    6,261.57/8,640.87 = 3,428.91/x
  3. Step 3: Cross multiply
    6,261.57x = 8,640.87 × 3,428.91
  4. Step 4: Simplify right side
    6,261.57x = 29,628,765.55
  5. Step 5: Solve for x
    x = 29,628,765.55/6,261.57
  6. Step 6: Final answer
    x = 4,731.84

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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.