Home / 1,806.23-2,491.80-1,142.94

Finding the Fourth Proportional to 1,806.23, 2,491.80 and 1,142.94

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Solution

The fourth proportional to 1,806.23, 2,491.80 and 1,142.94 is: 1,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.23 : 2,491.80 = 1,142.94 : x
  2. Step 2: Convert to fraction form
    1,806.23/2,491.80 = 1,142.94/x
  3. Step 3: Cross multiply
    1,806.23x = 2,491.80 × 1,142.94
  4. Step 4: Simplify right side
    1,806.23x = 2,847,982.95
  5. Step 5: Solve for x
    x = 2,847,982.95/1,806.23
  6. Step 6: Final answer
    x = 1,576.75

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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.