Home / 4,678.57-7,021.96-3,645.21

Finding the Fourth Proportional to 4,678.57, 7,021.96 and 3,645.21

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Solution

The fourth proportional to 4,678.57, 7,021.96 and 3,645.21 is: 5,471.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.57 : 7,021.96 = 3,645.21 : x
  2. Step 2: Convert to fraction form
    4,678.57/7,021.96 = 3,645.21/x
  3. Step 3: Cross multiply
    4,678.57x = 7,021.96 × 3,645.21
  4. Step 4: Simplify right side
    4,678.57x = 25,596,536.03
  5. Step 5: Solve for x
    x = 25,596,536.03/4,678.57
  6. Step 6: Final answer
    x = 5,471.02

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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.