Home / 3,180.07-4,388.25-1,853.65

Finding the Fourth Proportional to 3,180.07, 4,388.25 and 1,853.65

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Solution

The fourth proportional to 3,180.07, 4,388.25 and 1,853.65 is: 2,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.07 : 4,388.25 = 1,853.65 : x
  2. Step 2: Convert to fraction form
    3,180.07/4,388.25 = 1,853.65/x
  3. Step 3: Cross multiply
    3,180.07x = 4,388.25 × 1,853.65
  4. Step 4: Simplify right side
    3,180.07x = 8,134,279.61
  5. Step 5: Solve for x
    x = 8,134,279.61/3,180.07
  6. Step 6: Final answer
    x = 2,557.89

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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.