Home / 3,434.58-5,148.40-1,353.78

Finding the Fourth Proportional to 3,434.58, 5,148.40 and 1,353.78

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Solution

The fourth proportional to 3,434.58, 5,148.40 and 1,353.78 is: 2,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.58 : 5,148.40 = 1,353.78 : x
  2. Step 2: Convert to fraction form
    3,434.58/5,148.40 = 1,353.78/x
  3. Step 3: Cross multiply
    3,434.58x = 5,148.40 × 1,353.78
  4. Step 4: Simplify right side
    3,434.58x = 6,969,800.95
  5. Step 5: Solve for x
    x = 6,969,800.95/3,434.58
  6. Step 6: Final answer
    x = 2,029.30

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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.