Home / 4,903.20-7,353.60-1,980

Finding the Fourth Proportional to 4,903.20, 7,353.60 and 1,980

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Solution

The fourth proportional to 4,903.20, 7,353.60 and 1,980 is: 2,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.20 : 7,353.60 = 1,980 : x
  2. Step 2: Convert to fraction form
    4,903.20/7,353.60 = 1,980/x
  3. Step 3: Cross multiply
    4,903.20x = 7,353.60 × 1,980
  4. Step 4: Simplify right side
    4,903.20x = 14,560,128
  5. Step 5: Solve for x
    x = 14,560,128/4,903.20
  6. Step 6: Final answer
    x = 2,969.52

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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.