Home / 3,462.09-4,778.24-1,970.49

Finding the Fourth Proportional to 3,462.09, 4,778.24 and 1,970.49

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Solution

The fourth proportional to 3,462.09, 4,778.24 and 1,970.49 is: 2,719.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.09 : 4,778.24 = 1,970.49 : x
  2. Step 2: Convert to fraction form
    3,462.09/4,778.24 = 1,970.49/x
  3. Step 3: Cross multiply
    3,462.09x = 4,778.24 × 1,970.49
  4. Step 4: Simplify right side
    3,462.09x = 9,415,464.82
  5. Step 5: Solve for x
    x = 9,415,464.82/3,462.09
  6. Step 6: Final answer
    x = 2,719.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.