Home / 3,208.89-4,428.06-1,864.38

Finding the Fourth Proportional to 3,208.89, 4,428.06 and 1,864.38

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Solution

The fourth proportional to 3,208.89, 4,428.06 and 1,864.38 is: 2,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.89 : 4,428.06 = 1,864.38 : x
  2. Step 2: Convert to fraction form
    3,208.89/4,428.06 = 1,864.38/x
  3. Step 3: Cross multiply
    3,208.89x = 4,428.06 × 1,864.38
  4. Step 4: Simplify right side
    3,208.89x = 8,255,586.50
  5. Step 5: Solve for x
    x = 8,255,586.50/3,208.89
  6. Step 6: Final answer
    x = 2,572.72

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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.