Home / 3,428.36-4,731.12-1,856.45

Finding the Fourth Proportional to 3,428.36, 4,731.12 and 1,856.45

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Solution

The fourth proportional to 3,428.36, 4,731.12 and 1,856.45 is: 2,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.36 : 4,731.12 = 1,856.45 : x
  2. Step 2: Convert to fraction form
    3,428.36/4,731.12 = 1,856.45/x
  3. Step 3: Cross multiply
    3,428.36x = 4,731.12 × 1,856.45
  4. Step 4: Simplify right side
    3,428.36x = 8,783,087.72
  5. Step 5: Solve for x
    x = 8,783,087.72/3,428.36
  6. Step 6: Final answer
    x = 2,561.89

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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.