Home / 2,806.02-3,872.34-1,547.12

Finding the Fourth Proportional to 2,806.02, 3,872.34 and 1,547.12

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Solution

The fourth proportional to 2,806.02, 3,872.34 and 1,547.12 is: 2,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.02 : 3,872.34 = 1,547.12 : x
  2. Step 2: Convert to fraction form
    2,806.02/3,872.34 = 1,547.12/x
  3. Step 3: Cross multiply
    2,806.02x = 3,872.34 × 1,547.12
  4. Step 4: Simplify right side
    2,806.02x = 5,990,966.93
  5. Step 5: Solve for x
    x = 5,990,966.93/2,806.02
  6. Step 6: Final answer
    x = 2,135.04

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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.