Home / 3,177.87-4,385.89-1,851.99

Finding the Fourth Proportional to 3,177.87, 4,385.89 and 1,851.99

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Solution

The fourth proportional to 3,177.87, 4,385.89 and 1,851.99 is: 2,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.87 : 4,385.89 = 1,851.99 : x
  2. Step 2: Convert to fraction form
    3,177.87/4,385.89 = 1,851.99/x
  3. Step 3: Cross multiply
    3,177.87x = 4,385.89 × 1,851.99
  4. Step 4: Simplify right side
    3,177.87x = 8,122,624.42
  5. Step 5: Solve for x
    x = 8,122,624.42/3,177.87
  6. Step 6: Final answer
    x = 2,556.00

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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.