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Finding the Fourth Proportional to 2,846.45, 3,928.08 and 1,604.45

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Solution

The fourth proportional to 2,846.45, 3,928.08 and 1,604.45 is: 2,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.45 : 3,928.08 = 1,604.45 : x
  2. Step 2: Convert to fraction form
    2,846.45/3,928.08 = 1,604.45/x
  3. Step 3: Cross multiply
    2,846.45x = 3,928.08 × 1,604.45
  4. Step 4: Simplify right side
    2,846.45x = 6,302,388.32
  5. Step 5: Solve for x
    x = 6,302,388.32/2,846.45
  6. Step 6: Final answer
    x = 2,214.13

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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.