Home / 3,410.35-4,705.69-1,918.15

Finding the Fourth Proportional to 3,410.35, 4,705.69 and 1,918.15

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Solution

The fourth proportional to 3,410.35, 4,705.69 and 1,918.15 is: 2,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.35 : 4,705.69 = 1,918.15 : x
  2. Step 2: Convert to fraction form
    3,410.35/4,705.69 = 1,918.15/x
  3. Step 3: Cross multiply
    3,410.35x = 4,705.69 × 1,918.15
  4. Step 4: Simplify right side
    3,410.35x = 9,026,186.15
  5. Step 5: Solve for x
    x = 9,026,186.15/3,410.35
  6. Step 6: Final answer
    x = 2,646.71

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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.