Home / 3,119.03-4,678.16-1,949.13

Finding the Fourth Proportional to 3,119.03, 4,678.16 and 1,949.13

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Solution

The fourth proportional to 3,119.03, 4,678.16 and 1,949.13 is: 2,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.03 : 4,678.16 = 1,949.13 : x
  2. Step 2: Convert to fraction form
    3,119.03/4,678.16 = 1,949.13/x
  3. Step 3: Cross multiply
    3,119.03x = 4,678.16 × 1,949.13
  4. Step 4: Simplify right side
    3,119.03x = 9,118,332.26
  5. Step 5: Solve for x
    x = 9,118,332.26/3,119.03
  6. Step 6: Final answer
    x = 2,923.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.