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Finding the Fourth Proportional to 3,164.57, 4,743.72 and 1,779.07

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Solution

The fourth proportional to 3,164.57, 4,743.72 and 1,779.07 is: 2,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.57 : 4,743.72 = 1,779.07 : x
  2. Step 2: Convert to fraction form
    3,164.57/4,743.72 = 1,779.07/x
  3. Step 3: Cross multiply
    3,164.57x = 4,743.72 × 1,779.07
  4. Step 4: Simplify right side
    3,164.57x = 8,439,406.98
  5. Step 5: Solve for x
    x = 8,439,406.98/3,164.57
  6. Step 6: Final answer
    x = 2,666.84

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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.