Home / 7,261.87-10,020.80-4,118.35

Finding the Fourth Proportional to 7,261.87, 10,020.80 and 4,118.35

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Solution

The fourth proportional to 7,261.87, 10,020.80 and 4,118.35 is: 5,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.87 : 10,020.80 = 4,118.35 : x
  2. Step 2: Convert to fraction form
    7,261.87/10,020.80 = 4,118.35/x
  3. Step 3: Cross multiply
    7,261.87x = 10,020.80 × 4,118.35
  4. Step 4: Simplify right side
    7,261.87x = 41,269,141.09
  5. Step 5: Solve for x
    x = 41,269,141.09/7,261.87
  6. Step 6: Final answer
    x = 5,682.99

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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.