Home / 4,128.68-6,193.12-2,279.46

Finding the Fourth Proportional to 4,128.68, 6,193.12 and 2,279.46

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Solution

The fourth proportional to 4,128.68, 6,193.12 and 2,279.46 is: 3,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.68 : 6,193.12 = 2,279.46 : x
  2. Step 2: Convert to fraction form
    4,128.68/6,193.12 = 2,279.46/x
  3. Step 3: Cross multiply
    4,128.68x = 6,193.12 × 2,279.46
  4. Step 4: Simplify right side
    4,128.68x = 14,116,969.32
  5. Step 5: Solve for x
    x = 14,116,969.32/4,128.68
  6. Step 6: Final answer
    x = 3,419.25

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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.