Home / 3,428.21-4,730.94-1,856.30

Finding the Fourth Proportional to 3,428.21, 4,730.94 and 1,856.30

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Solution

The fourth proportional to 3,428.21, 4,730.94 and 1,856.30 is: 2,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.21 : 4,730.94 = 1,856.30 : x
  2. Step 2: Convert to fraction form
    3,428.21/4,730.94 = 1,856.30/x
  3. Step 3: Cross multiply
    3,428.21x = 4,730.94 × 1,856.30
  4. Step 4: Simplify right side
    3,428.21x = 8,782,044.97
  5. Step 5: Solve for x
    x = 8,782,044.97/3,428.21
  6. Step 6: Final answer
    x = 2,561.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.