Home / 2,431.44-3,354.72-1,436.28

Finding the Fourth Proportional to 2,431.44, 3,354.72 and 1,436.28

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Solution

The fourth proportional to 2,431.44, 3,354.72 and 1,436.28 is: 1,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.44 : 3,354.72 = 1,436.28 : x
  2. Step 2: Convert to fraction form
    2,431.44/3,354.72 = 1,436.28/x
  3. Step 3: Cross multiply
    2,431.44x = 3,354.72 × 1,436.28
  4. Step 4: Simplify right side
    2,431.44x = 4,818,317.24
  5. Step 5: Solve for x
    x = 4,818,317.24/2,431.44
  6. Step 6: Final answer
    x = 1,981.67

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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.