Home / 4,218.39-6,328.35-2,111.12

Finding the Fourth Proportional to 4,218.39, 6,328.35 and 2,111.12

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Solution

The fourth proportional to 4,218.39, 6,328.35 and 2,111.12 is: 3,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.39 : 6,328.35 = 2,111.12 : x
  2. Step 2: Convert to fraction form
    4,218.39/6,328.35 = 2,111.12/x
  3. Step 3: Cross multiply
    4,218.39x = 6,328.35 × 2,111.12
  4. Step 4: Simplify right side
    4,218.39x = 13,359,874.61
  5. Step 5: Solve for x
    x = 13,359,874.61/4,218.39
  6. Step 6: Final answer
    x = 3,167.06

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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.