Home / 5,428.23-7,491.09-3,070.50

Finding the Fourth Proportional to 5,428.23, 7,491.09 and 3,070.50

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Solution

The fourth proportional to 5,428.23, 7,491.09 and 3,070.50 is: 4,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.23 : 7,491.09 = 3,070.50 : x
  2. Step 2: Convert to fraction form
    5,428.23/7,491.09 = 3,070.50/x
  3. Step 3: Cross multiply
    5,428.23x = 7,491.09 × 3,070.50
  4. Step 4: Simplify right side
    5,428.23x = 23,001,391.85
  5. Step 5: Solve for x
    x = 23,001,391.85/5,428.23
  6. Step 6: Final answer
    x = 4,237.37

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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.