Home / 3,928,120.31-5,423,296.48-2,689,802.64

Finding the Fourth Proportional to 3,928,120.31, 5,423,296.48 and 2,689,802.64

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Solution

The fourth proportional to 3,928,120.31, 5,423,296.48 and 2,689,802.64 is: 3,713,632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,120.31 : 5,423,296.48 = 2,689,802.64 : x
  2. Step 2: Convert to fraction form
    3,928,120.31/5,423,296.48 = 2,689,802.64/x
  3. Step 3: Cross multiply
    3,928,120.31x = 5,423,296.48 × 2,689,802.64
  4. Step 4: Simplify right side
    3,928,120.31x = 14,587,597,182,682.20
  5. Step 5: Solve for x
    x = 14,587,597,182,682.20/3,928,120.31
  6. Step 6: Final answer
    x = 3,713,632.99

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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.