Home / 2,105,187.63-2,905,156.90-1,138,315.60

Finding the Fourth Proportional to 2,105,187.63, 2,905,156.90 and 1,138,315.60

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Solution

The fourth proportional to 2,105,187.63, 2,905,156.90 and 1,138,315.60 is: 1,570,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,187.63 : 2,905,156.90 = 1,138,315.60 : x
  2. Step 2: Convert to fraction form
    2,105,187.63/2,905,156.90 = 1,138,315.60/x
  3. Step 3: Cross multiply
    2,105,187.63x = 2,905,156.90 × 1,138,315.60
  4. Step 4: Simplify right side
    2,105,187.63x = 3,306,985,419,717.64
  5. Step 5: Solve for x
    x = 3,306,985,419,717.64/2,105,187.63
  6. Step 6: Final answer
    x = 1,570,874.43

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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.