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Finding the Fourth Proportional to 2,164.40, 3,246.60 and 704.56

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Solution

The fourth proportional to 2,164.40, 3,246.60 and 704.56 is: 1,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.40 : 3,246.60 = 704.56 : x
  2. Step 2: Convert to fraction form
    2,164.40/3,246.60 = 704.56/x
  3. Step 3: Cross multiply
    2,164.40x = 3,246.60 × 704.56
  4. Step 4: Simplify right side
    2,164.40x = 2,287,424.50
  5. Step 5: Solve for x
    x = 2,287,424.50/2,164.40
  6. Step 6: Final answer
    x = 1,056.84

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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.