Home / 2,427.21-3,348.68-1,378.67

Finding the Fourth Proportional to 2,427.21, 3,348.68 and 1,378.67

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Solution

The fourth proportional to 2,427.21, 3,348.68 and 1,378.67 is: 1,902.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.21 : 3,348.68 = 1,378.67 : x
  2. Step 2: Convert to fraction form
    2,427.21/3,348.68 = 1,378.67/x
  3. Step 3: Cross multiply
    2,427.21x = 3,348.68 × 1,378.67
  4. Step 4: Simplify right side
    2,427.21x = 4,616,701.02
  5. Step 5: Solve for x
    x = 4,616,701.02/2,427.21
  6. Step 6: Final answer
    x = 1,902.06

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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.