Home / 3,173.81-4,378.38-2,055.11

Finding the Fourth Proportional to 3,173.81, 4,378.38 and 2,055.11

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Solution

The fourth proportional to 3,173.81, 4,378.38 and 2,055.11 is: 2,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.81 : 4,378.38 = 2,055.11 : x
  2. Step 2: Convert to fraction form
    3,173.81/4,378.38 = 2,055.11/x
  3. Step 3: Cross multiply
    3,173.81x = 4,378.38 × 2,055.11
  4. Step 4: Simplify right side
    3,173.81x = 8,998,030.63
  5. Step 5: Solve for x
    x = 8,998,030.63/3,173.81
  6. Step 6: Final answer
    x = 2,835.09

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Double scale
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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.