Home / 1,947.67-2,923.70-1,205.01

Finding the Fourth Proportional to 1,947.67, 2,923.70 and 1,205.01

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Solution

The fourth proportional to 1,947.67, 2,923.70 and 1,205.01 is: 1,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.67 : 2,923.70 = 1,205.01 : x
  2. Step 2: Convert to fraction form
    1,947.67/2,923.70 = 1,205.01/x
  3. Step 3: Cross multiply
    1,947.67x = 2,923.70 × 1,205.01
  4. Step 4: Simplify right side
    1,947.67x = 3,523,081.71
  5. Step 5: Solve for x
    x = 3,523,081.71/1,947.67
  6. Step 6: Final answer
    x = 1,808.87

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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.