Home / 3,928,825.47-5,421,486.05-2,209,613.84

Finding the Fourth Proportional to 3,928,825.47, 5,421,486.05 and 2,209,613.84

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Solution

The fourth proportional to 3,928,825.47, 5,421,486.05 and 2,209,613.84 is: 3,049,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,825.47 : 5,421,486.05 = 2,209,613.84 : x
  2. Step 2: Convert to fraction form
    3,928,825.47/5,421,486.05 = 2,209,613.84/x
  3. Step 3: Cross multiply
    3,928,825.47x = 5,421,486.05 × 2,209,613.84
  4. Step 4: Simplify right side
    3,928,825.47x = 11,979,390,571,291.43
  5. Step 5: Solve for x
    x = 11,979,390,571,291.43/3,928,825.47
  6. Step 6: Final answer
    x = 3,049,102.25

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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.