Home / 1,897.12-2,846.76-1,297.36

Finding the Fourth Proportional to 1,897.12, 2,846.76 and 1,297.36

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Solution

The fourth proportional to 1,897.12, 2,846.76 and 1,297.36 is: 1,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.12 : 2,846.76 = 1,297.36 : x
  2. Step 2: Convert to fraction form
    1,897.12/2,846.76 = 1,297.36/x
  3. Step 3: Cross multiply
    1,897.12x = 2,846.76 × 1,297.36
  4. Step 4: Simplify right side
    1,897.12x = 3,693,272.55
  5. Step 5: Solve for x
    x = 3,693,272.55/1,897.12
  6. Step 6: Final answer
    x = 1,946.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.