Home / 3,881,976.32-5,357,073.12-2,163,169.28

Finding the Fourth Proportional to 3,881,976.32, 5,357,073.12 and 2,163,169.28

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Solution

The fourth proportional to 3,881,976.32, 5,357,073.12 and 2,163,169.28 is: 2,985,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881,976.32 : 5,357,073.12 = 2,163,169.28 : x
  2. Step 2: Convert to fraction form
    3,881,976.32/5,357,073.12 = 2,163,169.28/x
  3. Step 3: Cross multiply
    3,881,976.32x = 5,357,073.12 × 2,163,169.28
  4. Step 4: Simplify right side
    3,881,976.32x = 11,588,256,003,897.75
  5. Step 5: Solve for x
    x = 11,588,256,003,897.75/3,881,976.32
  6. Step 6: Final answer
    x = 2,985,143.40

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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.