Home / 3,119.66-4,306.78-2,058.15

Finding the Fourth Proportional to 3,119.66, 4,306.78 and 2,058.15

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Solution

The fourth proportional to 3,119.66, 4,306.78 and 2,058.15 is: 2,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.66 : 4,306.78 = 2,058.15 : x
  2. Step 2: Convert to fraction form
    3,119.66/4,306.78 = 2,058.15/x
  3. Step 3: Cross multiply
    3,119.66x = 4,306.78 × 2,058.15
  4. Step 4: Simplify right side
    3,119.66x = 8,863,999.26
  5. Step 5: Solve for x
    x = 8,863,999.26/3,119.66
  6. Step 6: Final answer
    x = 2,841.34

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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.