Home / 2,013.04-2,777.96-1,128.84

Finding the Fourth Proportional to 2,013.04, 2,777.96 and 1,128.84

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Solution

The fourth proportional to 2,013.04, 2,777.96 and 1,128.84 is: 1,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.04 : 2,777.96 = 1,128.84 : x
  2. Step 2: Convert to fraction form
    2,013.04/2,777.96 = 1,128.84/x
  3. Step 3: Cross multiply
    2,013.04x = 2,777.96 × 1,128.84
  4. Step 4: Simplify right side
    2,013.04x = 3,135,872.37
  5. Step 5: Solve for x
    x = 3,135,872.37/2,013.04
  6. Step 6: Final answer
    x = 1,557.78

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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.