Home / 3,220.79-4,829.56-1,370.88

Finding the Fourth Proportional to 3,220.79, 4,829.56 and 1,370.88

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Solution

The fourth proportional to 3,220.79, 4,829.56 and 1,370.88 is: 2,055.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.79 : 4,829.56 = 1,370.88 : x
  2. Step 2: Convert to fraction form
    3,220.79/4,829.56 = 1,370.88/x
  3. Step 3: Cross multiply
    3,220.79x = 4,829.56 × 1,370.88
  4. Step 4: Simplify right side
    3,220.79x = 6,620,743.79
  5. Step 5: Solve for x
    x = 6,620,743.79/3,220.79
  6. Step 6: Final answer
    x = 2,055.63

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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.