Home / 2,853.19-4,270.05-2,391.49

Finding the Fourth Proportional to 2,853.19, 4,270.05 and 2,391.49

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Solution

The fourth proportional to 2,853.19, 4,270.05 and 2,391.49 is: 3,579.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.19 : 4,270.05 = 2,391.49 : x
  2. Step 2: Convert to fraction form
    2,853.19/4,270.05 = 2,391.49/x
  3. Step 3: Cross multiply
    2,853.19x = 4,270.05 × 2,391.49
  4. Step 4: Simplify right side
    2,853.19x = 10,211,781.87
  5. Step 5: Solve for x
    x = 10,211,781.87/2,853.19
  6. Step 6: Final answer
    x = 3,579.08

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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.