Home / 2,175,992.40-3,002,809.80-1,209,097.84

Finding the Fourth Proportional to 2,175,992.40, 3,002,809.80 and 1,209,097.84

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Solution

The fourth proportional to 2,175,992.40, 3,002,809.80 and 1,209,097.84 is: 1,668,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175,992.40 : 3,002,809.80 = 1,209,097.84 : x
  2. Step 2: Convert to fraction form
    2,175,992.40/3,002,809.80 = 1,209,097.84/x
  3. Step 3: Cross multiply
    2,175,992.40x = 3,002,809.80 × 1,209,097.84
  4. Step 4: Simplify right side
    2,175,992.40x = 3,630,690,843,110.83
  5. Step 5: Solve for x
    x = 3,630,690,843,110.83/2,175,992.40
  6. Step 6: Final answer
    x = 1,668,521.84

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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.