Home / 2,806.22-3,872.68-1,547.32

Finding the Fourth Proportional to 2,806.22, 3,872.68 and 1,547.32

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Solution

The fourth proportional to 2,806.22, 3,872.68 and 1,547.32 is: 2,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.22 : 3,872.68 = 1,547.32 : x
  2. Step 2: Convert to fraction form
    2,806.22/3,872.68 = 1,547.32/x
  3. Step 3: Cross multiply
    2,806.22x = 3,872.68 × 1,547.32
  4. Step 4: Simplify right side
    2,806.22x = 5,992,275.22
  5. Step 5: Solve for x
    x = 5,992,275.22/2,806.22
  6. Step 6: Final answer
    x = 2,135.35

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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.