Home / 3,455.60-5,182.80-1,263.20

Finding the Fourth Proportional to 3,455.60, 5,182.80 and 1,263.20

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Solution

The fourth proportional to 3,455.60, 5,182.80 and 1,263.20 is: 1,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.60 : 5,182.80 = 1,263.20 : x
  2. Step 2: Convert to fraction form
    3,455.60/5,182.80 = 1,263.20/x
  3. Step 3: Cross multiply
    3,455.60x = 5,182.80 × 1,263.20
  4. Step 4: Simplify right side
    3,455.60x = 6,546,912.96
  5. Step 5: Solve for x
    x = 6,546,912.96/3,455.60
  6. Step 6: Final answer
    x = 1,894.58

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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.