Home / 3,057.18-4,218.81-1,730.79

Finding the Fourth Proportional to 3,057.18, 4,218.81 and 1,730.79

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Solution

The fourth proportional to 3,057.18, 4,218.81 and 1,730.79 is: 2,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.18 : 4,218.81 = 1,730.79 : x
  2. Step 2: Convert to fraction form
    3,057.18/4,218.81 = 1,730.79/x
  3. Step 3: Cross multiply
    3,057.18x = 4,218.81 × 1,730.79
  4. Step 4: Simplify right side
    3,057.18x = 7,301,874.16
  5. Step 5: Solve for x
    x = 7,301,874.16/3,057.18
  6. Step 6: Final answer
    x = 2,388.43

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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.