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Finding the Fourth Proportional to 3,161.93, 4,739.20 and 2,379.42

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Solution

The fourth proportional to 3,161.93, 4,739.20 and 2,379.42 is: 3,566.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.93 : 4,739.20 = 2,379.42 : x
  2. Step 2: Convert to fraction form
    3,161.93/4,739.20 = 2,379.42/x
  3. Step 3: Cross multiply
    3,161.93x = 4,739.20 × 2,379.42
  4. Step 4: Simplify right side
    3,161.93x = 11,276,547.26
  5. Step 5: Solve for x
    x = 11,276,547.26/3,161.93
  6. Step 6: Final answer
    x = 3,566.35

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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.