Home / 3,688.84-5,091.14-2,429.69

Finding the Fourth Proportional to 3,688.84, 5,091.14 and 2,429.69

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Solution

The fourth proportional to 3,688.84, 5,091.14 and 2,429.69 is: 3,353.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.84 : 5,091.14 = 2,429.69 : x
  2. Step 2: Convert to fraction form
    3,688.84/5,091.14 = 2,429.69/x
  3. Step 3: Cross multiply
    3,688.84x = 5,091.14 × 2,429.69
  4. Step 4: Simplify right side
    3,688.84x = 12,369,879.80
  5. Step 5: Solve for x
    x = 12,369,879.80/3,688.84
  6. Step 6: Final answer
    x = 3,353.33

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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.