Home / 5,115.36-7,048.56-3,994.56

Finding the Fourth Proportional to 5,115.36, 7,048.56 and 3,994.56

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Solution

The fourth proportional to 5,115.36, 7,048.56 and 3,994.56 is: 5,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.36 : 7,048.56 = 3,994.56 : x
  2. Step 2: Convert to fraction form
    5,115.36/7,048.56 = 3,994.56/x
  3. Step 3: Cross multiply
    5,115.36x = 7,048.56 × 3,994.56
  4. Step 4: Simplify right side
    5,115.36x = 28,155,895.83
  5. Step 5: Solve for x
    x = 28,155,895.83/5,115.36
  6. Step 6: Final answer
    x = 5,504.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.