Home / 3,385.27-4,661.49-3,187.99

Finding the Fourth Proportional to 3,385.27, 4,661.49 and 3,187.99

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Solution

The fourth proportional to 3,385.27, 4,661.49 and 3,187.99 is: 4,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.27 : 4,661.49 = 3,187.99 : x
  2. Step 2: Convert to fraction form
    3,385.27/4,661.49 = 3,187.99/x
  3. Step 3: Cross multiply
    3,385.27x = 4,661.49 × 3,187.99
  4. Step 4: Simplify right side
    3,385.27x = 14,860,783.51
  5. Step 5: Solve for x
    x = 14,860,783.51/3,385.27
  6. Step 6: Final answer
    x = 4,389.84

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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.