Home / 3,119.66-4,305.14-1,703.36

Finding the Fourth Proportional to 3,119.66, 4,305.14 and 1,703.36

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Solution

The fourth proportional to 3,119.66, 4,305.14 and 1,703.36 is: 2,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.66 : 4,305.14 = 1,703.36 : x
  2. Step 2: Convert to fraction form
    3,119.66/4,305.14 = 1,703.36/x
  3. Step 3: Cross multiply
    3,119.66x = 4,305.14 × 1,703.36
  4. Step 4: Simplify right side
    3,119.66x = 7,333,203.27
  5. Step 5: Solve for x
    x = 7,333,203.27/3,119.66
  6. Step 6: Final answer
    x = 2,350.64

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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.