Home / 3,148.56-4,698.24-2,820.60

Finding the Fourth Proportional to 3,148.56, 4,698.24 and 2,820.60

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Solution

The fourth proportional to 3,148.56, 4,698.24 and 2,820.60 is: 4,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.56 : 4,698.24 = 2,820.60 : x
  2. Step 2: Convert to fraction form
    3,148.56/4,698.24 = 2,820.60/x
  3. Step 3: Cross multiply
    3,148.56x = 4,698.24 × 2,820.60
  4. Step 4: Simplify right side
    3,148.56x = 13,251,855.74
  5. Step 5: Solve for x
    x = 13,251,855.74/3,148.56
  6. Step 6: Final answer
    x = 4,208.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.