Home / 4,970.80-7,445.40-2,659.60

Finding the Fourth Proportional to 4,970.80, 7,445.40 and 2,659.60

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Solution

The fourth proportional to 4,970.80, 7,445.40 and 2,659.60 is: 3,983.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.80 : 7,445.40 = 2,659.60 : x
  2. Step 2: Convert to fraction form
    4,970.80/7,445.40 = 2,659.60/x
  3. Step 3: Cross multiply
    4,970.80x = 7,445.40 × 2,659.60
  4. Step 4: Simplify right side
    4,970.80x = 19,801,785.84
  5. Step 5: Solve for x
    x = 19,801,785.84/4,970.80
  6. Step 6: Final answer
    x = 3,983.62

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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.