Home / 2,219.06-3,328.60-1,123.46

Finding the Fourth Proportional to 2,219.06, 3,328.60 and 1,123.46

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Solution

The fourth proportional to 2,219.06, 3,328.60 and 1,123.46 is: 1,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.06 : 3,328.60 = 1,123.46 : x
  2. Step 2: Convert to fraction form
    2,219.06/3,328.60 = 1,123.46/x
  3. Step 3: Cross multiply
    2,219.06x = 3,328.60 × 1,123.46
  4. Step 4: Simplify right side
    2,219.06x = 3,739,548.96
  5. Step 5: Solve for x
    x = 3,739,548.96/2,219.06
  6. Step 6: Final answer
    x = 1,685.20

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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.