Home / 3,115.98-4,668.48-2,777.00

Finding the Fourth Proportional to 3,115.98, 4,668.48 and 2,777.00

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Solution

The fourth proportional to 3,115.98, 4,668.48 and 2,777.00 is: 4,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.98 : 4,668.48 = 2,777.00 : x
  2. Step 2: Convert to fraction form
    3,115.98/4,668.48 = 2,777.00/x
  3. Step 3: Cross multiply
    3,115.98x = 4,668.48 × 2,777.00
  4. Step 4: Simplify right side
    3,115.98x = 12,964,345.62
  5. Step 5: Solve for x
    x = 12,964,345.62/3,115.98
  6. Step 6: Final answer
    x = 4,160.60

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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.