Home / 2,890,393.20-3,988,987.56-1,601,637.84

Finding the Fourth Proportional to 2,890,393.20, 3,988,987.56 and 1,601,637.84

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Solution

The fourth proportional to 2,890,393.20, 3,988,987.56 and 1,601,637.84 is: 2,210,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,393.20 : 3,988,987.56 = 1,601,637.84 : x
  2. Step 2: Convert to fraction form
    2,890,393.20/3,988,987.56 = 1,601,637.84/x
  3. Step 3: Cross multiply
    2,890,393.20x = 3,988,987.56 × 1,601,637.84
  4. Step 4: Simplify right side
    2,890,393.20x = 6,388,913,419,385.27
  5. Step 5: Solve for x
    x = 6,388,913,419,385.27/2,890,393.20
  6. Step 6: Final answer
    x = 2,210,395.95

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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.