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Finding the Fourth Proportional to 2,810.08, 3,878.08 and 1,615.44

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Solution

The fourth proportional to 2,810.08, 3,878.08 and 1,615.44 is: 2,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.08 : 3,878.08 = 1,615.44 : x
  2. Step 2: Convert to fraction form
    2,810.08/3,878.08 = 1,615.44/x
  3. Step 3: Cross multiply
    2,810.08x = 3,878.08 × 1,615.44
  4. Step 4: Simplify right side
    2,810.08x = 6,264,816.06
  5. Step 5: Solve for x
    x = 6,264,816.06/2,810.08
  6. Step 6: Final answer
    x = 2,229.41

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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.