Home / 3,013.78-4,518.97-1,256.89

Finding the Fourth Proportional to 3,013.78, 4,518.97 and 1,256.89

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Solution

The fourth proportional to 3,013.78, 4,518.97 and 1,256.89 is: 1,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.78 : 4,518.97 = 1,256.89 : x
  2. Step 2: Convert to fraction form
    3,013.78/4,518.97 = 1,256.89/x
  3. Step 3: Cross multiply
    3,013.78x = 4,518.97 × 1,256.89
  4. Step 4: Simplify right side
    3,013.78x = 5,679,849.31
  5. Step 5: Solve for x
    x = 5,679,849.31/3,013.78
  6. Step 6: Final answer
    x = 1,884.63

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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.