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Finding the Fourth Proportional to 6,889.87, 9,508.02 and 3,746.05

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Solution

The fourth proportional to 6,889.87, 9,508.02 and 3,746.05 is: 5,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.87 : 9,508.02 = 3,746.05 : x
  2. Step 2: Convert to fraction form
    6,889.87/9,508.02 = 3,746.05/x
  3. Step 3: Cross multiply
    6,889.87x = 9,508.02 × 3,746.05
  4. Step 4: Simplify right side
    6,889.87x = 35,617,518.32
  5. Step 5: Solve for x
    x = 35,617,518.32/6,889.87
  6. Step 6: Final answer
    x = 5,169.55

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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.