Home / 4,901.21-7,351.68-1,979.41

Finding the Fourth Proportional to 4,901.21, 7,351.68 and 1,979.41

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Solution

The fourth proportional to 4,901.21, 7,351.68 and 1,979.41 is: 2,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.21 : 7,351.68 = 1,979.41 : x
  2. Step 2: Convert to fraction form
    4,901.21/7,351.68 = 1,979.41/x
  3. Step 3: Cross multiply
    4,901.21x = 7,351.68 × 1,979.41
  4. Step 4: Simplify right side
    4,901.21x = 14,551,952.15
  5. Step 5: Solve for x
    x = 14,551,952.15/4,901.21
  6. Step 6: Final answer
    x = 2,969.05

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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.