Home / 3,072,128.76-4,239,778.17-1,695,745.77

Finding the Fourth Proportional to 3,072,128.76, 4,239,778.17 and 1,695,745.77

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Solution

The fourth proportional to 3,072,128.76, 4,239,778.17 and 1,695,745.77 is: 2,340,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072,128.76 : 4,239,778.17 = 1,695,745.77 : x
  2. Step 2: Convert to fraction form
    3,072,128.76/4,239,778.17 = 1,695,745.77/x
  3. Step 3: Cross multiply
    3,072,128.76x = 4,239,778.17 × 1,695,745.77
  4. Step 4: Simplify right side
    3,072,128.76x = 7,189,585,897,515.84
  5. Step 5: Solve for x
    x = 7,189,585,897,515.84/3,072,128.76
  6. Step 6: Final answer
    x = 2,340,261.90

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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.