Home / 3,208.29-4,426.21-1,948.89

Finding the Fourth Proportional to 3,208.29, 4,426.21 and 1,948.89

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Solution

The fourth proportional to 3,208.29, 4,426.21 and 1,948.89 is: 2,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.29 : 4,426.21 = 1,948.89 : x
  2. Step 2: Convert to fraction form
    3,208.29/4,426.21 = 1,948.89/x
  3. Step 3: Cross multiply
    3,208.29x = 4,426.21 × 1,948.89
  4. Step 4: Simplify right side
    3,208.29x = 8,626,196.41
  5. Step 5: Solve for x
    x = 8,626,196.41/3,208.29
  6. Step 6: Final answer
    x = 2,688.72

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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.