Home / 3,447.40-4,756.26-2,120.36

Finding the Fourth Proportional to 3,447.40, 4,756.26 and 2,120.36

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Solution

The fourth proportional to 3,447.40, 4,756.26 and 2,120.36 is: 2,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.40 : 4,756.26 = 2,120.36 : x
  2. Step 2: Convert to fraction form
    3,447.40/4,756.26 = 2,120.36/x
  3. Step 3: Cross multiply
    3,447.40x = 4,756.26 × 2,120.36
  4. Step 4: Simplify right side
    3,447.40x = 10,084,983.45
  5. Step 5: Solve for x
    x = 10,084,983.45/3,447.40
  6. Step 6: Final answer
    x = 2,925.39

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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.