Home / 2,011.74-3,014.91-1,318.11

Finding the Fourth Proportional to 2,011.74, 3,014.91 and 1,318.11

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Solution

The fourth proportional to 2,011.74, 3,014.91 and 1,318.11 is: 1,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.74 : 3,014.91 = 1,318.11 : x
  2. Step 2: Convert to fraction form
    2,011.74/3,014.91 = 1,318.11/x
  3. Step 3: Cross multiply
    2,011.74x = 3,014.91 × 1,318.11
  4. Step 4: Simplify right side
    2,011.74x = 3,973,983.02
  5. Step 5: Solve for x
    x = 3,973,983.02/2,011.74
  6. Step 6: Final answer
    x = 1,975.40

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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.