Home / 4,911.57-6,777.96-2,815.70

Finding the Fourth Proportional to 4,911.57, 6,777.96 and 2,815.70

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Solution

The fourth proportional to 4,911.57, 6,777.96 and 2,815.70 is: 3,885.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.57 : 6,777.96 = 2,815.70 : x
  2. Step 2: Convert to fraction form
    4,911.57/6,777.96 = 2,815.70/x
  3. Step 3: Cross multiply
    4,911.57x = 6,777.96 × 2,815.70
  4. Step 4: Simplify right side
    4,911.57x = 19,084,668.08
  5. Step 5: Solve for x
    x = 19,084,668.08/4,911.57
  6. Step 6: Final answer
    x = 3,885.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.