Home / 3,212.80-4,808.40-2,953.60

Finding the Fourth Proportional to 3,212.80, 4,808.40 and 2,953.60

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Solution

The fourth proportional to 3,212.80, 4,808.40 and 2,953.60 is: 4,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.80 : 4,808.40 = 2,953.60 : x
  2. Step 2: Convert to fraction form
    3,212.80/4,808.40 = 2,953.60/x
  3. Step 3: Cross multiply
    3,212.80x = 4,808.40 × 2,953.60
  4. Step 4: Simplify right side
    3,212.80x = 14,202,090.24
  5. Step 5: Solve for x
    x = 14,202,090.24/3,212.80
  6. Step 6: Final answer
    x = 4,420.47

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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.