Home / 3,896.60-5,845.48-1,298.92

Finding the Fourth Proportional to 3,896.60, 5,845.48 and 1,298.92

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Solution

The fourth proportional to 3,896.60, 5,845.48 and 1,298.92 is: 1,948.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.60 : 5,845.48 = 1,298.92 : x
  2. Step 2: Convert to fraction form
    3,896.60/5,845.48 = 1,298.92/x
  3. Step 3: Cross multiply
    3,896.60x = 5,845.48 × 1,298.92
  4. Step 4: Simplify right side
    3,896.60x = 7,592,810.88
  5. Step 5: Solve for x
    x = 7,592,810.88/3,896.60
  6. Step 6: Final answer
    x = 1,948.57

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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.