Home / 7,328.21-10,992.23-1,781.54

Finding the Fourth Proportional to 7,328.21, 10,992.23 and 1,781.54

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Solution

The fourth proportional to 7,328.21, 10,992.23 and 1,781.54 is: 2,672.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.21 : 10,992.23 = 1,781.54 : x
  2. Step 2: Convert to fraction form
    7,328.21/10,992.23 = 1,781.54/x
  3. Step 3: Cross multiply
    7,328.21x = 10,992.23 × 1,781.54
  4. Step 4: Simplify right side
    7,328.21x = 19,583,116.01
  5. Step 5: Solve for x
    x = 19,583,116.01/7,328.21
  6. Step 6: Final answer
    x = 2,672.29

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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.