Home / 2,783.03-4,174.53-1,139.58

Finding the Fourth Proportional to 2,783.03, 4,174.53 and 1,139.58

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Solution

The fourth proportional to 2,783.03, 4,174.53 and 1,139.58 is: 1,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.03 : 4,174.53 = 1,139.58 : x
  2. Step 2: Convert to fraction form
    2,783.03/4,174.53 = 1,139.58/x
  3. Step 3: Cross multiply
    2,783.03x = 4,174.53 × 1,139.58
  4. Step 4: Simplify right side
    2,783.03x = 4,757,210.90
  5. Step 5: Solve for x
    x = 4,757,210.90/2,783.03
  6. Step 6: Final answer
    x = 1,709.36

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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.