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Finding the Fourth Proportional to 2,888.82, 3,987.09 and 1,630.26

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Solution

The fourth proportional to 2,888.82, 3,987.09 and 1,630.26 is: 2,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.82 : 3,987.09 = 1,630.26 : x
  2. Step 2: Convert to fraction form
    2,888.82/3,987.09 = 1,630.26/x
  3. Step 3: Cross multiply
    2,888.82x = 3,987.09 × 1,630.26
  4. Step 4: Simplify right side
    2,888.82x = 6,499,993.34
  5. Step 5: Solve for x
    x = 6,499,993.34/2,888.82
  6. Step 6: Final answer
    x = 2,250.05

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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.