Home / 3,435.36-5,152.80-1,243.68

Finding the Fourth Proportional to 3,435.36, 5,152.80 and 1,243.68

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Solution

The fourth proportional to 3,435.36, 5,152.80 and 1,243.68 is: 1,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.36 : 5,152.80 = 1,243.68 : x
  2. Step 2: Convert to fraction form
    3,435.36/5,152.80 = 1,243.68/x
  3. Step 3: Cross multiply
    3,435.36x = 5,152.80 × 1,243.68
  4. Step 4: Simplify right side
    3,435.36x = 6,408,434.30
  5. Step 5: Solve for x
    x = 6,408,434.30/3,435.36
  6. Step 6: Final answer
    x = 1,865.43

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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.