Home / 3,427.14-5,139.47-1,235.28

Finding the Fourth Proportional to 3,427.14, 5,139.47 and 1,235.28

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Solution

The fourth proportional to 3,427.14, 5,139.47 and 1,235.28 is: 1,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.14 : 5,139.47 = 1,235.28 : x
  2. Step 2: Convert to fraction form
    3,427.14/5,139.47 = 1,235.28/x
  3. Step 3: Cross multiply
    3,427.14x = 5,139.47 × 1,235.28
  4. Step 4: Simplify right side
    3,427.14x = 6,348,684.50
  5. Step 5: Solve for x
    x = 6,348,684.50/3,427.14
  6. Step 6: Final answer
    x = 1,852.47

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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.