Home / 1,897.30-2,616.57-1,618.54

Finding the Fourth Proportional to 1,897.30, 2,616.57 and 1,618.54

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Solution

The fourth proportional to 1,897.30, 2,616.57 and 1,618.54 is: 2,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.30 : 2,616.57 = 1,618.54 : x
  2. Step 2: Convert to fraction form
    1,897.30/2,616.57 = 1,618.54/x
  3. Step 3: Cross multiply
    1,897.30x = 2,616.57 × 1,618.54
  4. Step 4: Simplify right side
    1,897.30x = 4,235,023.21
  5. Step 5: Solve for x
    x = 4,235,023.21/1,897.30
  6. Step 6: Final answer
    x = 2,232.13

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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.