Home / 3,083.80-4,625.70-2,666.20

Finding the Fourth Proportional to 3,083.80, 4,625.70 and 2,666.20

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Solution

The fourth proportional to 3,083.80, 4,625.70 and 2,666.20 is: 3,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.80 : 4,625.70 = 2,666.20 : x
  2. Step 2: Convert to fraction form
    3,083.80/4,625.70 = 2,666.20/x
  3. Step 3: Cross multiply
    3,083.80x = 4,625.70 × 2,666.20
  4. Step 4: Simplify right side
    3,083.80x = 12,333,041.34
  5. Step 5: Solve for x
    x = 12,333,041.34/3,083.80
  6. Step 6: Final answer
    x = 3,999.30

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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.