Home / 3,428.09-4,730.72-1,856.15

Finding the Fourth Proportional to 3,428.09, 4,730.72 and 1,856.15

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Solution

The fourth proportional to 3,428.09, 4,730.72 and 1,856.15 is: 2,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.09 : 4,730.72 = 1,856.15 : x
  2. Step 2: Convert to fraction form
    3,428.09/4,730.72 = 1,856.15/x
  3. Step 3: Cross multiply
    3,428.09x = 4,730.72 × 1,856.15
  4. Step 4: Simplify right side
    3,428.09x = 8,780,892.99
  5. Step 5: Solve for x
    x = 8,780,892.99/3,428.09
  6. Step 6: Final answer
    x = 2,561.46

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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.