Home / 4,129.60-6,195.30-1,355.80

Finding the Fourth Proportional to 4,129.60, 6,195.30 and 1,355.80

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Solution

The fourth proportional to 4,129.60, 6,195.30 and 1,355.80 is: 2,034.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.60 : 6,195.30 = 1,355.80 : x
  2. Step 2: Convert to fraction form
    4,129.60/6,195.30 = 1,355.80/x
  3. Step 3: Cross multiply
    4,129.60x = 6,195.30 × 1,355.80
  4. Step 4: Simplify right side
    4,129.60x = 8,399,587.74
  5. Step 5: Solve for x
    x = 8,399,587.74/4,129.60
  6. Step 6: Final answer
    x = 2,034.00

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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.