Home / 3,131.23-4,697-2,582.40

Finding the Fourth Proportional to 3,131.23, 4,697 and 2,582.40

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Solution

The fourth proportional to 3,131.23, 4,697 and 2,582.40 is: 3,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.23 : 4,697 = 2,582.40 : x
  2. Step 2: Convert to fraction form
    3,131.23/4,697 = 2,582.40/x
  3. Step 3: Cross multiply
    3,131.23x = 4,697 × 2,582.40
  4. Step 4: Simplify right side
    3,131.23x = 12,129,532.80
  5. Step 5: Solve for x
    x = 12,129,532.80/3,131.23
  6. Step 6: Final answer
    x = 3,873.73

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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.