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Finding the Fourth Proportional to 2,709.74, 3,738.81 and 1,590.63

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Solution

The fourth proportional to 2,709.74, 3,738.81 and 1,590.63 is: 2,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.74 : 3,738.81 = 1,590.63 : x
  2. Step 2: Convert to fraction form
    2,709.74/3,738.81 = 1,590.63/x
  3. Step 3: Cross multiply
    2,709.74x = 3,738.81 × 1,590.63
  4. Step 4: Simplify right side
    2,709.74x = 5,947,063.35
  5. Step 5: Solve for x
    x = 5,947,063.35/2,709.74
  6. Step 6: Final answer
    x = 2,194.70

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1.5x scale

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.