Home / 7,176.21-10,764.51-1,982.08

Finding the Fourth Proportional to 7,176.21, 10,764.51 and 1,982.08

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Solution

The fourth proportional to 7,176.21, 10,764.51 and 1,982.08 is: 2,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.21 : 10,764.51 = 1,982.08 : x
  2. Step 2: Convert to fraction form
    7,176.21/10,764.51 = 1,982.08/x
  3. Step 3: Cross multiply
    7,176.21x = 10,764.51 × 1,982.08
  4. Step 4: Simplify right side
    7,176.21x = 21,336,119.98
  5. Step 5: Solve for x
    x = 21,336,119.98/7,176.21
  6. Step 6: Final answer
    x = 2,973.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.