Home / 3,428.52-5,140.80-3,018.48

Finding the Fourth Proportional to 3,428.52, 5,140.80 and 3,018.48

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Solution

The fourth proportional to 3,428.52, 5,140.80 and 3,018.48 is: 4,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.52 : 5,140.80 = 3,018.48 : x
  2. Step 2: Convert to fraction form
    3,428.52/5,140.80 = 3,018.48/x
  3. Step 3: Cross multiply
    3,428.52x = 5,140.80 × 3,018.48
  4. Step 4: Simplify right side
    3,428.52x = 15,517,401.98
  5. Step 5: Solve for x
    x = 15,517,401.98/3,428.52
  6. Step 6: Final answer
    x = 4,525.98

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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.