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Finding the Fourth Proportional to 3,739.76, 5,608.23 and 1,240.47

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Solution

The fourth proportional to 3,739.76, 5,608.23 and 1,240.47 is: 1,860.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.76 : 5,608.23 = 1,240.47 : x
  2. Step 2: Convert to fraction form
    3,739.76/5,608.23 = 1,240.47/x
  3. Step 3: Cross multiply
    3,739.76x = 5,608.23 × 1,240.47
  4. Step 4: Simplify right side
    3,739.76x = 6,956,841.07
  5. Step 5: Solve for x
    x = 6,956,841.07/3,739.76
  6. Step 6: Final answer
    x = 1,860.24

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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.