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Finding the Fourth Proportional to 2,875.56, 3,968.10 and 1,633.56

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Solution

The fourth proportional to 2,875.56, 3,968.10 and 1,633.56 is: 2,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.56 : 3,968.10 = 1,633.56 : x
  2. Step 2: Convert to fraction form
    2,875.56/3,968.10 = 1,633.56/x
  3. Step 3: Cross multiply
    2,875.56x = 3,968.10 × 1,633.56
  4. Step 4: Simplify right side
    2,875.56x = 6,482,129.44
  5. Step 5: Solve for x
    x = 6,482,129.44/2,875.56
  6. Step 6: Final answer
    x = 2,254.21

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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.