Home / 3,387.10-5,083.08-1,440.68

Finding the Fourth Proportional to 3,387.10, 5,083.08 and 1,440.68

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Solution

The fourth proportional to 3,387.10, 5,083.08 and 1,440.68 is: 2,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.10 : 5,083.08 = 1,440.68 : x
  2. Step 2: Convert to fraction form
    3,387.10/5,083.08 = 1,440.68/x
  3. Step 3: Cross multiply
    3,387.10x = 5,083.08 × 1,440.68
  4. Step 4: Simplify right side
    3,387.10x = 7,323,091.69
  5. Step 5: Solve for x
    x = 7,323,091.69/3,387.10
  6. Step 6: Final answer
    x = 2,162.05

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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.