Home / 2,858.18-3,946.19-2,193.84

Finding the Fourth Proportional to 2,858.18, 3,946.19 and 2,193.84

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Solution

The fourth proportional to 2,858.18, 3,946.19 and 2,193.84 is: 3,028.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.18 : 3,946.19 = 2,193.84 : x
  2. Step 2: Convert to fraction form
    2,858.18/3,946.19 = 2,193.84/x
  3. Step 3: Cross multiply
    2,858.18x = 3,946.19 × 2,193.84
  4. Step 4: Simplify right side
    2,858.18x = 8,657,298.50
  5. Step 5: Solve for x
    x = 8,657,298.50/2,858.18
  6. Step 6: Final answer
    x = 3,028.96

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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.