Home / 4,128.34-6,193.80-1,355.05

Finding the Fourth Proportional to 4,128.34, 6,193.80 and 1,355.05

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Solution

The fourth proportional to 4,128.34, 6,193.80 and 1,355.05 is: 2,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.34 : 6,193.80 = 1,355.05 : x
  2. Step 2: Convert to fraction form
    4,128.34/6,193.80 = 1,355.05/x
  3. Step 3: Cross multiply
    4,128.34x = 6,193.80 × 1,355.05
  4. Step 4: Simplify right side
    4,128.34x = 8,392,908.69
  5. Step 5: Solve for x
    x = 8,392,908.69/4,128.34
  6. Step 6: Final answer
    x = 2,033.00

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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.