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Finding the Fourth Proportional to 2,670.45, 4,009.79 and 2,259.38

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Solution

The fourth proportional to 2,670.45, 4,009.79 and 2,259.38 is: 3,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.45 : 4,009.79 = 2,259.38 : x
  2. Step 2: Convert to fraction form
    2,670.45/4,009.79 = 2,259.38/x
  3. Step 3: Cross multiply
    2,670.45x = 4,009.79 × 2,259.38
  4. Step 4: Simplify right side
    2,670.45x = 9,059,633.68
  5. Step 5: Solve for x
    x = 9,059,633.68/2,670.45
  6. Step 6: Final answer
    x = 3,392.55

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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.