Home / 3,439,985.76-4,747,183.40-1,891,273.86

Finding the Fourth Proportional to 3,439,985.76, 4,747,183.40 and 1,891,273.86

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Solution

The fourth proportional to 3,439,985.76, 4,747,183.40 and 1,891,273.86 is: 2,609,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439,985.76 : 4,747,183.40 = 1,891,273.86 : x
  2. Step 2: Convert to fraction form
    3,439,985.76/4,747,183.40 = 1,891,273.86/x
  3. Step 3: Cross multiply
    3,439,985.76x = 4,747,183.40 × 1,891,273.86
  4. Step 4: Simplify right side
    3,439,985.76x = 8,978,223,877,774.11
  5. Step 5: Solve for x
    x = 8,978,223,877,774.11/3,439,985.76
  6. Step 6: Final answer
    x = 2,609,959.61

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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.