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Finding the Fourth Proportional to 6,409.62, 8,848.98 and 4,885.21

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Solution

The fourth proportional to 6,409.62, 8,848.98 and 4,885.21 is: 6,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.62 : 8,848.98 = 4,885.21 : x
  2. Step 2: Convert to fraction form
    6,409.62/8,848.98 = 4,885.21/x
  3. Step 3: Cross multiply
    6,409.62x = 8,848.98 × 4,885.21
  4. Step 4: Simplify right side
    6,409.62x = 43,229,126.34
  5. Step 5: Solve for x
    x = 43,229,126.34/6,409.62
  6. Step 6: Final answer
    x = 6,744.41

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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.