Home / 2,809.48-4,206.66-2,636.32

Finding the Fourth Proportional to 2,809.48, 4,206.66 and 2,636.32

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Solution

The fourth proportional to 2,809.48, 4,206.66 and 2,636.32 is: 3,947.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.48 : 4,206.66 = 2,636.32 : x
  2. Step 2: Convert to fraction form
    2,809.48/4,206.66 = 2,636.32/x
  3. Step 3: Cross multiply
    2,809.48x = 4,206.66 × 2,636.32
  4. Step 4: Simplify right side
    2,809.48x = 11,090,101.89
  5. Step 5: Solve for x
    x = 11,090,101.89/2,809.48
  6. Step 6: Final answer
    x = 3,947.39

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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.