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Finding the Fourth Proportional to 3,383.78, 5,074.65 and 1,303.63

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Solution

The fourth proportional to 3,383.78, 5,074.65 and 1,303.63 is: 1,955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.78 : 5,074.65 = 1,303.63 : x
  2. Step 2: Convert to fraction form
    3,383.78/5,074.65 = 1,303.63/x
  3. Step 3: Cross multiply
    3,383.78x = 5,074.65 × 1,303.63
  4. Step 4: Simplify right side
    3,383.78x = 6,615,453.29
  5. Step 5: Solve for x
    x = 6,615,453.29/3,383.78
  6. Step 6: Final answer
    x = 1,955.05

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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.