Home / 3,138,924.08-4,333,031.52-2,121,706.64

Finding the Fourth Proportional to 3,138,924.08, 4,333,031.52 and 2,121,706.64

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Solution

The fourth proportional to 3,138,924.08, 4,333,031.52 and 2,121,706.64 is: 2,928,844.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,924.08 : 4,333,031.52 = 2,121,706.64 : x
  2. Step 2: Convert to fraction form
    3,138,924.08/4,333,031.52 = 2,121,706.64/x
  3. Step 3: Cross multiply
    3,138,924.08x = 4,333,031.52 × 2,121,706.64
  4. Step 4: Simplify right side
    3,138,924.08x = 9,193,421,747,313.29
  5. Step 5: Solve for x
    x = 9,193,421,747,313.29/3,138,924.08
  6. Step 6: Final answer
    x = 2,928,844.89

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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.