Home / 3,412.10-4,708.41-1,919.72

Finding the Fourth Proportional to 3,412.10, 4,708.41 and 1,919.72

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Solution

The fourth proportional to 3,412.10, 4,708.41 and 1,919.72 is: 2,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.10 : 4,708.41 = 1,919.72 : x
  2. Step 2: Convert to fraction form
    3,412.10/4,708.41 = 1,919.72/x
  3. Step 3: Cross multiply
    3,412.10x = 4,708.41 × 1,919.72
  4. Step 4: Simplify right side
    3,412.10x = 9,038,805.30
  5. Step 5: Solve for x
    x = 9,038,805.30/3,412.10
  6. Step 6: Final answer
    x = 2,649.05

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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.