Home / 3,643,431.86-5,028,379.28-2,115,538.98

Finding the Fourth Proportional to 3,643,431.86, 5,028,379.28 and 2,115,538.98

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Solution

The fourth proportional to 3,643,431.86, 5,028,379.28 and 2,115,538.98 is: 2,919,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643,431.86 : 5,028,379.28 = 2,115,538.98 : x
  2. Step 2: Convert to fraction form
    3,643,431.86/5,028,379.28 = 2,115,538.98/x
  3. Step 3: Cross multiply
    3,643,431.86x = 5,028,379.28 × 2,115,538.98
  4. Step 4: Simplify right side
    3,643,431.86x = 10,637,732,362,486.64
  5. Step 5: Solve for x
    x = 10,637,732,362,486.64/3,643,431.86
  6. Step 6: Final answer
    x = 2,919,701.20

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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.