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Finding the Fourth Proportional to 6,405.30, 8,847.45 and 4,724.10

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Solution

The fourth proportional to 6,405.30, 8,847.45 and 4,724.10 is: 6,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.30 : 8,847.45 = 4,724.10 : x
  2. Step 2: Convert to fraction form
    6,405.30/8,847.45 = 4,724.10/x
  3. Step 3: Cross multiply
    6,405.30x = 8,847.45 × 4,724.10
  4. Step 4: Simplify right side
    6,405.30x = 41,796,238.55
  5. Step 5: Solve for x
    x = 41,796,238.55/6,405.30
  6. Step 6: Final answer
    x = 6,525.26

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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.