Home / 3,389.91-4,675.66-3,111.05

Finding the Fourth Proportional to 3,389.91, 4,675.66 and 3,111.05

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Solution

The fourth proportional to 3,389.91, 4,675.66 and 3,111.05 is: 4,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.91 : 4,675.66 = 3,111.05 : x
  2. Step 2: Convert to fraction form
    3,389.91/4,675.66 = 3,111.05/x
  3. Step 3: Cross multiply
    3,389.91x = 4,675.66 × 3,111.05
  4. Step 4: Simplify right side
    3,389.91x = 14,546,188.66
  5. Step 5: Solve for x
    x = 14,546,188.66/3,389.91
  6. Step 6: Final answer
    x = 4,291.03

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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.