Home / 2,055-2,835.90-1,123.50

Finding the Fourth Proportional to 2,055, 2,835.90 and 1,123.50

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Solution

The fourth proportional to 2,055, 2,835.90 and 1,123.50 is: 1,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055 : 2,835.90 = 1,123.50 : x
  2. Step 2: Convert to fraction form
    2,055/2,835.90 = 1,123.50/x
  3. Step 3: Cross multiply
    2,055x = 2,835.90 × 1,123.50
  4. Step 4: Simplify right side
    2,055x = 3,186,133.65
  5. Step 5: Solve for x
    x = 3,186,133.65/2,055
  6. Step 6: Final answer
    x = 1,550.43

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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.