Home / 3,057.08-4,218.89-1,730.90

Finding the Fourth Proportional to 3,057.08, 4,218.89 and 1,730.90

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Solution

The fourth proportional to 3,057.08, 4,218.89 and 1,730.90 is: 2,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.08 : 4,218.89 = 1,730.90 : x
  2. Step 2: Convert to fraction form
    3,057.08/4,218.89 = 1,730.90/x
  3. Step 3: Cross multiply
    3,057.08x = 4,218.89 × 1,730.90
  4. Step 4: Simplify right side
    3,057.08x = 7,302,446.95
  5. Step 5: Solve for x
    x = 7,302,446.95/3,057.08
  6. Step 6: Final answer
    x = 2,388.70

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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.