Home / 2,897.03-3,998.30-1,777.77

Finding the Fourth Proportional to 2,897.03, 3,998.30 and 1,777.77

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Solution

The fourth proportional to 2,897.03, 3,998.30 and 1,777.77 is: 2,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.03 : 3,998.30 = 1,777.77 : x
  2. Step 2: Convert to fraction form
    2,897.03/3,998.30 = 1,777.77/x
  3. Step 3: Cross multiply
    2,897.03x = 3,998.30 × 1,777.77
  4. Step 4: Simplify right side
    2,897.03x = 7,108,048.90
  5. Step 5: Solve for x
    x = 7,108,048.90/2,897.03
  6. Step 6: Final answer
    x = 2,453.56

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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.