Home / 7,261.40-10,020.78-4,117.64

Finding the Fourth Proportional to 7,261.40, 10,020.78 and 4,117.64

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Solution

The fourth proportional to 7,261.40, 10,020.78 and 4,117.64 is: 5,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.40 : 10,020.78 = 4,117.64 : x
  2. Step 2: Convert to fraction form
    7,261.40/10,020.78 = 4,117.64/x
  3. Step 3: Cross multiply
    7,261.40x = 10,020.78 × 4,117.64
  4. Step 4: Simplify right side
    7,261.40x = 41,261,964.56
  5. Step 5: Solve for x
    x = 41,261,964.56/7,261.40
  6. Step 6: Final answer
    x = 5,682.37

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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.