Home / 2,175,928.11-3,002,648.76-1,209,025.35

Finding the Fourth Proportional to 2,175,928.11, 3,002,648.76 and 1,209,025.35

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Solution

The fourth proportional to 2,175,928.11, 3,002,648.76 and 1,209,025.35 is: 1,668,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175,928.11 : 3,002,648.76 = 1,209,025.35 : x
  2. Step 2: Convert to fraction form
    2,175,928.11/3,002,648.76 = 1,209,025.35/x
  3. Step 3: Cross multiply
    2,175,928.11x = 3,002,648.76 × 1,209,025.35
  4. Step 4: Simplify right side
    2,175,928.11x = 3,630,278,467,986.07
  5. Step 5: Solve for x
    x = 3,630,278,467,986.07/2,175,928.11
  6. Step 6: Final answer
    x = 1,668,381.62

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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.