Home / 3,419.28-4,720.32-2,661.39

Finding the Fourth Proportional to 3,419.28, 4,720.32 and 2,661.39

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Solution

The fourth proportional to 3,419.28, 4,720.32 and 2,661.39 is: 3,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.28 : 4,720.32 = 2,661.39 : x
  2. Step 2: Convert to fraction form
    3,419.28/4,720.32 = 2,661.39/x
  3. Step 3: Cross multiply
    3,419.28x = 4,720.32 × 2,661.39
  4. Step 4: Simplify right side
    3,419.28x = 12,562,612.44
  5. Step 5: Solve for x
    x = 12,562,612.44/3,419.28
  6. Step 6: Final answer
    x = 3,674.05

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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.