Home / 2,840.63-4,260.69-1,109.25

Finding the Fourth Proportional to 2,840.63, 4,260.69 and 1,109.25

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Solution

The fourth proportional to 2,840.63, 4,260.69 and 1,109.25 is: 1,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.63 : 4,260.69 = 1,109.25 : x
  2. Step 2: Convert to fraction form
    2,840.63/4,260.69 = 1,109.25/x
  3. Step 3: Cross multiply
    2,840.63x = 4,260.69 × 1,109.25
  4. Step 4: Simplify right side
    2,840.63x = 4,726,170.38
  5. Step 5: Solve for x
    x = 4,726,170.38/2,840.63
  6. Step 6: Final answer
    x = 1,663.78

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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.