Home / 3,427.58-5,139.77-1,783.68

Finding the Fourth Proportional to 3,427.58, 5,139.77 and 1,783.68

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Solution

The fourth proportional to 3,427.58, 5,139.77 and 1,783.68 is: 2,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.58 : 5,139.77 = 1,783.68 : x
  2. Step 2: Convert to fraction form
    3,427.58/5,139.77 = 1,783.68/x
  3. Step 3: Cross multiply
    3,427.58x = 5,139.77 × 1,783.68
  4. Step 4: Simplify right side
    3,427.58x = 9,167,696.04
  5. Step 5: Solve for x
    x = 9,167,696.04/3,427.58
  6. Step 6: Final answer
    x = 2,674.69

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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.