Home / 3,035.78-4,189.61-1,709.60

Finding the Fourth Proportional to 3,035.78, 4,189.61 and 1,709.60

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Solution

The fourth proportional to 3,035.78, 4,189.61 and 1,709.60 is: 2,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,035.78 : 4,189.61 = 1,709.60 : x
  2. Step 2: Convert to fraction form
    3,035.78/4,189.61 = 1,709.60/x
  3. Step 3: Cross multiply
    3,035.78x = 4,189.61 × 1,709.60
  4. Step 4: Simplify right side
    3,035.78x = 7,162,548.71
  5. Step 5: Solve for x
    x = 7,162,548.71/3,035.78
  6. Step 6: Final answer
    x = 2,359.38

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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.