Home / 3,412.03-4,708.12-1,919.71

Finding the Fourth Proportional to 3,412.03, 4,708.12 and 1,919.71

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Solution

The fourth proportional to 3,412.03, 4,708.12 and 1,919.71 is: 2,648.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.03 : 4,708.12 = 1,919.71 : x
  2. Step 2: Convert to fraction form
    3,412.03/4,708.12 = 1,919.71/x
  3. Step 3: Cross multiply
    3,412.03x = 4,708.12 × 1,919.71
  4. Step 4: Simplify right side
    3,412.03x = 9,038,225.05
  5. Step 5: Solve for x
    x = 9,038,225.05/3,412.03
  6. Step 6: Final answer
    x = 2,648.93

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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.