Home / 2,109,851.40-3,167,109.90-1,312,033.80

Finding the Fourth Proportional to 2,109,851.40, 3,167,109.90 and 1,312,033.80

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Solution

The fourth proportional to 2,109,851.40, 3,167,109.90 and 1,312,033.80 is: 1,969,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,851.40 : 3,167,109.90 = 1,312,033.80 : x
  2. Step 2: Convert to fraction form
    2,109,851.40/3,167,109.90 = 1,312,033.80/x
  3. Step 3: Cross multiply
    2,109,851.40x = 3,167,109.90 × 1,312,033.80
  4. Step 4: Simplify right side
    2,109,851.40x = 4,155,355,237,114.62
  5. Step 5: Solve for x
    x = 4,155,355,237,114.62/2,109,851.40
  6. Step 6: Final answer
    x = 1,969,501.38

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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.