Home / 3,745.60-5,618.56-1,897.60

Finding the Fourth Proportional to 3,745.60, 5,618.56 and 1,897.60

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Solution

The fourth proportional to 3,745.60, 5,618.56 and 1,897.60 is: 2,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.60 : 5,618.56 = 1,897.60 : x
  2. Step 2: Convert to fraction form
    3,745.60/5,618.56 = 1,897.60/x
  3. Step 3: Cross multiply
    3,745.60x = 5,618.56 × 1,897.60
  4. Step 4: Simplify right side
    3,745.60x = 10,661,779.46
  5. Step 5: Solve for x
    x = 10,661,779.46/3,745.60
  6. Step 6: Final answer
    x = 2,846.48

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1.5x scale

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.