Home / 1,207.48-1,811.07-330.05

Finding the Fourth Proportional to 1,207.48, 1,811.07 and 330.05

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Solution

The fourth proportional to 1,207.48, 1,811.07 and 330.05 is: 495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.48 : 1,811.07 = 330.05 : x
  2. Step 2: Convert to fraction form
    1,207.48/1,811.07 = 330.05/x
  3. Step 3: Cross multiply
    1,207.48x = 1,811.07 × 330.05
  4. Step 4: Simplify right side
    1,207.48x = 597,743.65
  5. Step 5: Solve for x
    x = 597,743.65/1,207.48
  6. Step 6: Final answer
    x = 495.03

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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.