Home / 3,330.10-4,992.72-1,139.32

Finding the Fourth Proportional to 3,330.10, 4,992.72 and 1,139.32

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Solution

The fourth proportional to 3,330.10, 4,992.72 and 1,139.32 is: 1,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.10 : 4,992.72 = 1,139.32 : x
  2. Step 2: Convert to fraction form
    3,330.10/4,992.72 = 1,139.32/x
  3. Step 3: Cross multiply
    3,330.10x = 4,992.72 × 1,139.32
  4. Step 4: Simplify right side
    3,330.10x = 5,688,305.75
  5. Step 5: Solve for x
    x = 5,688,305.75/3,330.10
  6. Step 6: Final answer
    x = 1,708.15

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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.