Home / 2,681.10-4,021.20-732.84

Finding the Fourth Proportional to 2,681.10, 4,021.20 and 732.84

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Solution

The fourth proportional to 2,681.10, 4,021.20 and 732.84 is: 1,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.10 : 4,021.20 = 732.84 : x
  2. Step 2: Convert to fraction form
    2,681.10/4,021.20 = 732.84/x
  3. Step 3: Cross multiply
    2,681.10x = 4,021.20 × 732.84
  4. Step 4: Simplify right side
    2,681.10x = 2,946,896.21
  5. Step 5: Solve for x
    x = 2,946,896.21/2,681.10
  6. Step 6: Final answer
    x = 1,099.14

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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.