Home / 7,261.90-10,021.14-4,118.20

Finding the Fourth Proportional to 7,261.90, 10,021.14 and 4,118.20

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Solution

The fourth proportional to 7,261.90, 10,021.14 and 4,118.20 is: 5,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.90 : 10,021.14 = 4,118.20 : x
  2. Step 2: Convert to fraction form
    7,261.90/10,021.14 = 4,118.20/x
  3. Step 3: Cross multiply
    7,261.90x = 10,021.14 × 4,118.20
  4. Step 4: Simplify right side
    7,261.90x = 41,269,058.75
  5. Step 5: Solve for x
    x = 41,269,058.75/7,261.90
  6. Step 6: Final answer
    x = 5,682.96

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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.