Home / 5,405.94-8,114.31-3,645.36

Finding the Fourth Proportional to 5,405.94, 8,114.31 and 3,645.36

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Solution

The fourth proportional to 5,405.94, 8,114.31 and 3,645.36 is: 5,471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.94 : 8,114.31 = 3,645.36 : x
  2. Step 2: Convert to fraction form
    5,405.94/8,114.31 = 3,645.36/x
  3. Step 3: Cross multiply
    5,405.94x = 8,114.31 × 3,645.36
  4. Step 4: Simplify right side
    5,405.94x = 29,579,581.10
  5. Step 5: Solve for x
    x = 29,579,581.10/5,405.94
  6. Step 6: Final answer
    x = 5,471.68

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1.5x scale

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.