Home / 5,406.31-8,109.46-2,285.50

Finding the Fourth Proportional to 5,406.31, 8,109.46 and 2,285.50

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Solution

The fourth proportional to 5,406.31, 8,109.46 and 2,285.50 is: 3,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.31 : 8,109.46 = 2,285.50 : x
  2. Step 2: Convert to fraction form
    5,406.31/8,109.46 = 2,285.50/x
  3. Step 3: Cross multiply
    5,406.31x = 8,109.46 × 2,285.50
  4. Step 4: Simplify right side
    5,406.31x = 18,534,170.83
  5. Step 5: Solve for x
    x = 18,534,170.83/5,406.31
  6. Step 6: Final answer
    x = 3,428.25

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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.