Home / 5,460.03-8,138.88-5,109.48

Finding the Fourth Proportional to 5,460.03, 8,138.88 and 5,109.48

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Solution

The fourth proportional to 5,460.03, 8,138.88 and 5,109.48 is: 7,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.03 : 8,138.88 = 5,109.48 : x
  2. Step 2: Convert to fraction form
    5,460.03/8,138.88 = 5,109.48/x
  3. Step 3: Cross multiply
    5,460.03x = 8,138.88 × 5,109.48
  4. Step 4: Simplify right side
    5,460.03x = 41,585,444.58
  5. Step 5: Solve for x
    x = 41,585,444.58/5,460.03
  6. Step 6: Final answer
    x = 7,616.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.