Home / 3,185.60-4,778.48-1,541.84

Finding the Fourth Proportional to 3,185.60, 4,778.48 and 1,541.84

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Solution

The fourth proportional to 3,185.60, 4,778.48 and 1,541.84 is: 2,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.60 : 4,778.48 = 1,541.84 : x
  2. Step 2: Convert to fraction form
    3,185.60/4,778.48 = 1,541.84/x
  3. Step 3: Cross multiply
    3,185.60x = 4,778.48 × 1,541.84
  4. Step 4: Simplify right side
    3,185.60x = 7,367,651.60
  5. Step 5: Solve for x
    x = 7,367,651.60/3,185.60
  6. Step 6: Final answer
    x = 2,312.80

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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.