Home / 5,108.27-7,048.90-3,119.32

Finding the Fourth Proportional to 5,108.27, 7,048.90 and 3,119.32

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Solution

The fourth proportional to 5,108.27, 7,048.90 and 3,119.32 is: 4,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.27 : 7,048.90 = 3,119.32 : x
  2. Step 2: Convert to fraction form
    5,108.27/7,048.90 = 3,119.32/x
  3. Step 3: Cross multiply
    5,108.27x = 7,048.90 × 3,119.32
  4. Step 4: Simplify right side
    5,108.27x = 21,987,774.75
  5. Step 5: Solve for x
    x = 21,987,774.75/5,108.27
  6. Step 6: Final answer
    x = 4,304.35

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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.