Home / 2,806.17-3,872.49-1,547.22

Finding the Fourth Proportional to 2,806.17, 3,872.49 and 1,547.22

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Solution

The fourth proportional to 2,806.17, 3,872.49 and 1,547.22 is: 2,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.17 : 3,872.49 = 1,547.22 : x
  2. Step 2: Convert to fraction form
    2,806.17/3,872.49 = 1,547.22/x
  3. Step 3: Cross multiply
    2,806.17x = 3,872.49 × 1,547.22
  4. Step 4: Simplify right side
    2,806.17x = 5,991,602.70
  5. Step 5: Solve for x
    x = 5,991,602.70/2,806.17
  6. Step 6: Final answer
    x = 2,135.16

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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.