Home / 3,989,032.57-5,505,071-2,439,808.21

Finding the Fourth Proportional to 3,989,032.57, 5,505,071 and 2,439,808.21

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Solution

The fourth proportional to 3,989,032.57, 5,505,071 and 2,439,808.21 is: 3,367,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,032.57 : 5,505,071 = 2,439,808.21 : x
  2. Step 2: Convert to fraction form
    3,989,032.57/5,505,071 = 2,439,808.21/x
  3. Step 3: Cross multiply
    3,989,032.57x = 5,505,071 × 2,439,808.21
  4. Step 4: Simplify right side
    3,989,032.57x = 13,431,317,422,432.91
  5. Step 5: Solve for x
    x = 13,431,317,422,432.91/3,989,032.57
  6. Step 6: Final answer
    x = 3,367,061.36

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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.