Home / 1,660.81-2,293.94-1,211.98

Finding the Fourth Proportional to 1,660.81, 2,293.94 and 1,211.98

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Solution

The fourth proportional to 1,660.81, 2,293.94 and 1,211.98 is: 1,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.81 : 2,293.94 = 1,211.98 : x
  2. Step 2: Convert to fraction form
    1,660.81/2,293.94 = 1,211.98/x
  3. Step 3: Cross multiply
    1,660.81x = 2,293.94 × 1,211.98
  4. Step 4: Simplify right side
    1,660.81x = 2,780,209.40
  5. Step 5: Solve for x
    x = 2,780,209.40/1,660.81
  6. Step 6: Final answer
    x = 1,674.01

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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.