Home / 3,890,752.65-5,369,015.93-2,171,982.06

Finding the Fourth Proportional to 3,890,752.65, 5,369,015.93 and 2,171,982.06

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Solution

The fourth proportional to 3,890,752.65, 5,369,015.93 and 2,171,982.06 is: 2,997,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,752.65 : 5,369,015.93 = 2,171,982.06 : x
  2. Step 2: Convert to fraction form
    3,890,752.65/5,369,015.93 = 2,171,982.06/x
  3. Step 3: Cross multiply
    3,890,752.65x = 5,369,015.93 × 2,171,982.06
  4. Step 4: Simplify right side
    3,890,752.65x = 11,661,406,268,954.30
  5. Step 5: Solve for x
    x = 11,661,406,268,954.30/3,890,752.65
  6. Step 6: Final answer
    x = 2,997,210.90

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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.