Home / 3,644.70-5,021.76-3,045.12

Finding the Fourth Proportional to 3,644.70, 5,021.76 and 3,045.12

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Solution

The fourth proportional to 3,644.70, 5,021.76 and 3,045.12 is: 4,195.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.70 : 5,021.76 = 3,045.12 : x
  2. Step 2: Convert to fraction form
    3,644.70/5,021.76 = 3,045.12/x
  3. Step 3: Cross multiply
    3,644.70x = 5,021.76 × 3,045.12
  4. Step 4: Simplify right side
    3,644.70x = 15,291,861.81
  5. Step 5: Solve for x
    x = 15,291,861.81/3,644.70
  6. Step 6: Final answer
    x = 4,195.64

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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.