Home / 3,427.84-5,142.15-1,347.58

Finding the Fourth Proportional to 3,427.84, 5,142.15 and 1,347.58

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Solution

The fourth proportional to 3,427.84, 5,142.15 and 1,347.58 is: 2,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.84 : 5,142.15 = 1,347.58 : x
  2. Step 2: Convert to fraction form
    3,427.84/5,142.15 = 1,347.58/x
  3. Step 3: Cross multiply
    3,427.84x = 5,142.15 × 1,347.58
  4. Step 4: Simplify right side
    3,427.84x = 6,929,458.50
  5. Step 5: Solve for x
    x = 6,929,458.50/3,427.84
  6. Step 6: Final answer
    x = 2,021.52

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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.