Home / 3,600.18-5,400.09-1,409.31

Finding the Fourth Proportional to 3,600.18, 5,400.09 and 1,409.31

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Solution

The fourth proportional to 3,600.18, 5,400.09 and 1,409.31 is: 2,113.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.18 : 5,400.09 = 1,409.31 : x
  2. Step 2: Convert to fraction form
    3,600.18/5,400.09 = 1,409.31/x
  3. Step 3: Cross multiply
    3,600.18x = 5,400.09 × 1,409.31
  4. Step 4: Simplify right side
    3,600.18x = 7,610,400.84
  5. Step 5: Solve for x
    x = 7,610,400.84/3,600.18
  6. Step 6: Final answer
    x = 2,113.89

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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.