Home / 2,830.93-3,908.58-2,166.59

Finding the Fourth Proportional to 2,830.93, 3,908.58 and 2,166.59

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Solution

The fourth proportional to 2,830.93, 3,908.58 and 2,166.59 is: 2,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.93 : 3,908.58 = 2,166.59 : x
  2. Step 2: Convert to fraction form
    2,830.93/3,908.58 = 2,166.59/x
  3. Step 3: Cross multiply
    2,830.93x = 3,908.58 × 2,166.59
  4. Step 4: Simplify right side
    2,830.93x = 8,468,290.34
  5. Step 5: Solve for x
    x = 8,468,290.34/2,830.93
  6. Step 6: Final answer
    x = 2,991.35

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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.