Home / 3,397.77-4,688.96-1,905.75

Finding the Fourth Proportional to 3,397.77, 4,688.96 and 1,905.75

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Solution

The fourth proportional to 3,397.77, 4,688.96 and 1,905.75 is: 2,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.77 : 4,688.96 = 1,905.75 : x
  2. Step 2: Convert to fraction form
    3,397.77/4,688.96 = 1,905.75/x
  3. Step 3: Cross multiply
    3,397.77x = 4,688.96 × 1,905.75
  4. Step 4: Simplify right side
    3,397.77x = 8,935,975.99
  5. Step 5: Solve for x
    x = 8,935,975.99/3,397.77
  6. Step 6: Final answer
    x = 2,629.95

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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.