Home / 7,636.48-11,456.34-2,639.32

Finding the Fourth Proportional to 7,636.48, 11,456.34 and 2,639.32

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Solution

The fourth proportional to 7,636.48, 11,456.34 and 2,639.32 is: 3,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.48 : 11,456.34 = 2,639.32 : x
  2. Step 2: Convert to fraction form
    7,636.48/11,456.34 = 2,639.32/x
  3. Step 3: Cross multiply
    7,636.48x = 11,456.34 × 2,639.32
  4. Step 4: Simplify right side
    7,636.48x = 30,236,947.29
  5. Step 5: Solve for x
    x = 30,236,947.29/7,636.48
  6. Step 6: Final answer
    x = 3,959.54

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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.