Home / 2,131,218.60-3,181,280.72-1,862,173.86

Finding the Fourth Proportional to 2,131,218.60, 3,181,280.72 and 1,862,173.86

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Solution

The fourth proportional to 2,131,218.60, 3,181,280.72 and 1,862,173.86 is: 2,779,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,218.60 : 3,181,280.72 = 1,862,173.86 : x
  2. Step 2: Convert to fraction form
    2,131,218.60/3,181,280.72 = 1,862,173.86/x
  3. Step 3: Cross multiply
    2,131,218.60x = 3,181,280.72 × 1,862,173.86
  4. Step 4: Simplify right side
    2,131,218.60x = 5,924,097,788,795.11
  5. Step 5: Solve for x
    x = 5,924,097,788,795.11/2,131,218.60
  6. Step 6: Final answer
    x = 2,779,676.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.