Home / 5,012.78-7,519.13-3,918.07

Finding the Fourth Proportional to 5,012.78, 7,519.13 and 3,918.07

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Solution

The fourth proportional to 5,012.78, 7,519.13 and 3,918.07 is: 5,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.78 : 7,519.13 = 3,918.07 : x
  2. Step 2: Convert to fraction form
    5,012.78/7,519.13 = 3,918.07/x
  3. Step 3: Cross multiply
    5,012.78x = 7,519.13 × 3,918.07
  4. Step 4: Simplify right side
    5,012.78x = 29,460,440.08
  5. Step 5: Solve for x
    x = 29,460,440.08/5,012.78
  6. Step 6: Final answer
    x = 5,877.07

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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.