Home / 3,179,918.28-4,387,888.65-2,149,667.67

Finding the Fourth Proportional to 3,179,918.28, 4,387,888.65 and 2,149,667.67

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Solution

The fourth proportional to 3,179,918.28, 4,387,888.65 and 2,149,667.67 is: 2,966,271.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,918.28 : 4,387,888.65 = 2,149,667.67 : x
  2. Step 2: Convert to fraction form
    3,179,918.28/4,387,888.65 = 2,149,667.67/x
  3. Step 3: Cross multiply
    3,179,918.28x = 4,387,888.65 × 2,149,667.67
  4. Step 4: Simplify right side
    3,179,918.28x = 9,432,502,370,464.95
  5. Step 5: Solve for x
    x = 9,432,502,370,464.95/3,179,918.28
  6. Step 6: Final answer
    x = 2,966,271.94

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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.