Home / 5,428.48-7,490.04-3,190.24

Finding the Fourth Proportional to 5,428.48, 7,490.04 and 3,190.24

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Solution

The fourth proportional to 5,428.48, 7,490.04 and 3,190.24 is: 4,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.48 : 7,490.04 = 3,190.24 : x
  2. Step 2: Convert to fraction form
    5,428.48/7,490.04 = 3,190.24/x
  3. Step 3: Cross multiply
    5,428.48x = 7,490.04 × 3,190.24
  4. Step 4: Simplify right side
    5,428.48x = 23,895,025.21
  5. Step 5: Solve for x
    x = 23,895,025.21/5,428.48
  6. Step 6: Final answer
    x = 4,401.79

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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.