Home / 5,291.90-7,299.49-3,405.92

Finding the Fourth Proportional to 5,291.90, 7,299.49 and 3,405.92

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Solution

The fourth proportional to 5,291.90, 7,299.49 and 3,405.92 is: 4,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.90 : 7,299.49 = 3,405.92 : x
  2. Step 2: Convert to fraction form
    5,291.90/7,299.49 = 3,405.92/x
  3. Step 3: Cross multiply
    5,291.90x = 7,299.49 × 3,405.92
  4. Step 4: Simplify right side
    5,291.90x = 24,861,461.95
  5. Step 5: Solve for x
    x = 24,861,461.95/5,291.90
  6. Step 6: Final answer
    x = 4,698.03

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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.