Home / 6,261.30-8,640.23-3,428.10

Finding the Fourth Proportional to 6,261.30, 8,640.23 and 3,428.10

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Solution

The fourth proportional to 6,261.30, 8,640.23 and 3,428.10 is: 4,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.30 : 8,640.23 = 3,428.10 : x
  2. Step 2: Convert to fraction form
    6,261.30/8,640.23 = 3,428.10/x
  3. Step 3: Cross multiply
    6,261.30x = 8,640.23 × 3,428.10
  4. Step 4: Simplify right side
    6,261.30x = 29,619,555.32
  5. Step 5: Solve for x
    x = 29,619,555.32/6,261.30
  6. Step 6: Final answer
    x = 4,730.58

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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.