Home / 2,809.22-3,876.72-1,567.22

Finding the Fourth Proportional to 2,809.22, 3,876.72 and 1,567.22

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Solution

The fourth proportional to 2,809.22, 3,876.72 and 1,567.22 is: 2,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.22 : 3,876.72 = 1,567.22 : x
  2. Step 2: Convert to fraction form
    2,809.22/3,876.72 = 1,567.22/x
  3. Step 3: Cross multiply
    2,809.22x = 3,876.72 × 1,567.22
  4. Step 4: Simplify right side
    2,809.22x = 6,075,673.12
  5. Step 5: Solve for x
    x = 6,075,673.12/2,809.22
  6. Step 6: Final answer
    x = 2,162.76

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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.