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Finding the Fourth Proportional to 6,368.60, 9,549.78 and 2,619.70

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Solution

The fourth proportional to 6,368.60, 9,549.78 and 2,619.70 is: 3,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.60 : 9,549.78 = 2,619.70 : x
  2. Step 2: Convert to fraction form
    6,368.60/9,549.78 = 2,619.70/x
  3. Step 3: Cross multiply
    6,368.60x = 9,549.78 × 2,619.70
  4. Step 4: Simplify right side
    6,368.60x = 25,017,558.67
  5. Step 5: Solve for x
    x = 25,017,558.67/6,368.60
  6. Step 6: Final answer
    x = 3,928.27

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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.