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Finding the Fourth Proportional to 6,281.60, 9,422.40 and 1,664.60

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Solution

The fourth proportional to 6,281.60, 9,422.40 and 1,664.60 is: 2,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.60 : 9,422.40 = 1,664.60 : x
  2. Step 2: Convert to fraction form
    6,281.60/9,422.40 = 1,664.60/x
  3. Step 3: Cross multiply
    6,281.60x = 9,422.40 × 1,664.60
  4. Step 4: Simplify right side
    6,281.60x = 15,684,527.04
  5. Step 5: Solve for x
    x = 15,684,527.04/6,281.60
  6. Step 6: Final answer
    x = 2,496.90

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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.