Home / 5,428.37-7,491.08-3,190.50

Finding the Fourth Proportional to 5,428.37, 7,491.08 and 3,190.50

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Solution

The fourth proportional to 5,428.37, 7,491.08 and 3,190.50 is: 4,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.37 : 7,491.08 = 3,190.50 : x
  2. Step 2: Convert to fraction form
    5,428.37/7,491.08 = 3,190.50/x
  3. Step 3: Cross multiply
    5,428.37x = 7,491.08 × 3,190.50
  4. Step 4: Simplify right side
    5,428.37x = 23,900,274.79
  5. Step 5: Solve for x
    x = 23,900,274.79/5,428.37
  6. Step 6: Final answer
    x = 4,402.85

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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.