Home / 5,405.09-8,107.61-1,509.48

Finding the Fourth Proportional to 5,405.09, 8,107.61 and 1,509.48

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Solution

The fourth proportional to 5,405.09, 8,107.61 and 1,509.48 is: 2,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.09 : 8,107.61 = 1,509.48 : x
  2. Step 2: Convert to fraction form
    5,405.09/8,107.61 = 1,509.48/x
  3. Step 3: Cross multiply
    5,405.09x = 8,107.61 × 1,509.48
  4. Step 4: Simplify right side
    5,405.09x = 12,238,267.60
  5. Step 5: Solve for x
    x = 12,238,267.60/5,405.09
  6. Step 6: Final answer
    x = 2,264.21

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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.