Home / 1,423.35-2,131.37-1,204.65

Finding the Fourth Proportional to 1,423.35, 2,131.37 and 1,204.65

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Solution

The fourth proportional to 1,423.35, 2,131.37 and 1,204.65 is: 1,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.35 : 2,131.37 = 1,204.65 : x
  2. Step 2: Convert to fraction form
    1,423.35/2,131.37 = 1,204.65/x
  3. Step 3: Cross multiply
    1,423.35x = 2,131.37 × 1,204.65
  4. Step 4: Simplify right side
    1,423.35x = 2,567,554.87
  5. Step 5: Solve for x
    x = 2,567,554.87/1,423.35
  6. Step 6: Final answer
    x = 1,803.88

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1.5x scale

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.