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Finding the Fourth Proportional to 5,804.40, 8,707.86 and 1,908.72

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Solution

The fourth proportional to 5,804.40, 8,707.86 and 1,908.72 is: 2,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,804.40 : 8,707.86 = 1,908.72 : x
  2. Step 2: Convert to fraction form
    5,804.40/8,707.86 = 1,908.72/x
  3. Step 3: Cross multiply
    5,804.40x = 8,707.86 × 1,908.72
  4. Step 4: Simplify right side
    5,804.40x = 16,620,866.54
  5. Step 5: Solve for x
    x = 16,620,866.54/5,804.40
  6. Step 6: Final answer
    x = 2,863.49

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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.