Home / 2,100,813.10-3,143,962.05-1,259,968.30

Finding the Fourth Proportional to 2,100,813.10, 3,143,962.05 and 1,259,968.30

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Solution

The fourth proportional to 2,100,813.10, 3,143,962.05 and 1,259,968.30 is: 1,885,599.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,813.10 : 3,143,962.05 = 1,259,968.30 : x
  2. Step 2: Convert to fraction form
    2,100,813.10/3,143,962.05 = 1,259,968.30/x
  3. Step 3: Cross multiply
    2,100,813.10x = 3,143,962.05 × 1,259,968.30
  4. Step 4: Simplify right side
    2,100,813.10x = 3,961,292,519,403.02
  5. Step 5: Solve for x
    x = 3,961,292,519,403.02/2,100,813.10
  6. Step 6: Final answer
    x = 1,885,599.68

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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.