Home / 3,453.64-5,178.63-1,503.56

Finding the Fourth Proportional to 3,453.64, 5,178.63 and 1,503.56

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Solution

The fourth proportional to 3,453.64, 5,178.63 and 1,503.56 is: 2,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.64 : 5,178.63 = 1,503.56 : x
  2. Step 2: Convert to fraction form
    3,453.64/5,178.63 = 1,503.56/x
  3. Step 3: Cross multiply
    3,453.64x = 5,178.63 × 1,503.56
  4. Step 4: Simplify right side
    3,453.64x = 7,786,399.51
  5. Step 5: Solve for x
    x = 7,786,399.51/3,453.64
  6. Step 6: Final answer
    x = 2,254.55

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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.