Home / 1,939.08-2,675.87-1,054.86

Finding the Fourth Proportional to 1,939.08, 2,675.87 and 1,054.86

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Solution

The fourth proportional to 1,939.08, 2,675.87 and 1,054.86 is: 1,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.08 : 2,675.87 = 1,054.86 : x
  2. Step 2: Convert to fraction form
    1,939.08/2,675.87 = 1,054.86/x
  3. Step 3: Cross multiply
    1,939.08x = 2,675.87 × 1,054.86
  4. Step 4: Simplify right side
    1,939.08x = 2,822,662.95
  5. Step 5: Solve for x
    x = 2,822,662.95/1,939.08
  6. Step 6: Final answer
    x = 1,455.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.