Home / 3,092.78-4,638.68-1,012.79

Finding the Fourth Proportional to 3,092.78, 4,638.68 and 1,012.79

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Solution

The fourth proportional to 3,092.78, 4,638.68 and 1,012.79 is: 1,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,092.78 : 4,638.68 = 1,012.79 : x
  2. Step 2: Convert to fraction form
    3,092.78/4,638.68 = 1,012.79/x
  3. Step 3: Cross multiply
    3,092.78x = 4,638.68 × 1,012.79
  4. Step 4: Simplify right side
    3,092.78x = 4,697,980.46
  5. Step 5: Solve for x
    x = 4,697,980.46/3,092.78
  6. Step 6: Final answer
    x = 1,519.02

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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.