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Finding the Fourth Proportional to 2,893.64, 3,989.03 and 1,897.19

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Solution

The fourth proportional to 2,893.64, 3,989.03 and 1,897.19 is: 2,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.64 : 3,989.03 = 1,897.19 : x
  2. Step 2: Convert to fraction form
    2,893.64/3,989.03 = 1,897.19/x
  3. Step 3: Cross multiply
    2,893.64x = 3,989.03 × 1,897.19
  4. Step 4: Simplify right side
    2,893.64x = 7,567,927.88
  5. Step 5: Solve for x
    x = 7,567,927.88/2,893.64
  6. Step 6: Final answer
    x = 2,615.37

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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.