Home / 3,171,790.78-4,377,075.38-1,721,486.05

Finding the Fourth Proportional to 3,171,790.78, 4,377,075.38 and 1,721,486.05

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Solution

The fourth proportional to 3,171,790.78, 4,377,075.38 and 1,721,486.05 is: 2,375,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,790.78 : 4,377,075.38 = 1,721,486.05 : x
  2. Step 2: Convert to fraction form
    3,171,790.78/4,377,075.38 = 1,721,486.05/x
  3. Step 3: Cross multiply
    3,171,790.78x = 4,377,075.38 × 1,721,486.05
  4. Step 4: Simplify right side
    3,171,790.78x = 7,535,074,206,468.45
  5. Step 5: Solve for x
    x = 7,535,074,206,468.45/3,171,790.78
  6. Step 6: Final answer
    x = 2,375,652.98

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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.