Home / 3,166.19-4,370.40-2,172.95

Finding the Fourth Proportional to 3,166.19, 4,370.40 and 2,172.95

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Solution

The fourth proportional to 3,166.19, 4,370.40 and 2,172.95 is: 2,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.19 : 4,370.40 = 2,172.95 : x
  2. Step 2: Convert to fraction form
    3,166.19/4,370.40 = 2,172.95/x
  3. Step 3: Cross multiply
    3,166.19x = 4,370.40 × 2,172.95
  4. Step 4: Simplify right side
    3,166.19x = 9,496,638.83
  5. Step 5: Solve for x
    x = 9,496,638.83/3,166.19
  6. Step 6: Final answer
    x = 2,999.39

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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.