Home / 3,057.10-4,218.89-1,730.99

Finding the Fourth Proportional to 3,057.10, 4,218.89 and 1,730.99

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Solution

The fourth proportional to 3,057.10, 4,218.89 and 1,730.99 is: 2,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.10 : 4,218.89 = 1,730.99 : x
  2. Step 2: Convert to fraction form
    3,057.10/4,218.89 = 1,730.99/x
  3. Step 3: Cross multiply
    3,057.10x = 4,218.89 × 1,730.99
  4. Step 4: Simplify right side
    3,057.10x = 7,302,858.29
  5. Step 5: Solve for x
    x = 7,302,858.29/3,057.10
  6. Step 6: Final answer
    x = 2,388.82

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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.