Home / 3,122.89-4,684.61-1,274.14

Finding the Fourth Proportional to 3,122.89, 4,684.61 and 1,274.14

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Solution

The fourth proportional to 3,122.89, 4,684.61 and 1,274.14 is: 1,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.89 : 4,684.61 = 1,274.14 : x
  2. Step 2: Convert to fraction form
    3,122.89/4,684.61 = 1,274.14/x
  3. Step 3: Cross multiply
    3,122.89x = 4,684.61 × 1,274.14
  4. Step 4: Simplify right side
    3,122.89x = 5,968,848.99
  5. Step 5: Solve for x
    x = 5,968,848.99/3,122.89
  6. Step 6: Final answer
    x = 1,911.32

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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.