Home / 3,991,141.67-5,507,774.42-2,155,599.45

Finding the Fourth Proportional to 3,991,141.67, 5,507,774.42 and 2,155,599.45

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Solution

The fourth proportional to 3,991,141.67, 5,507,774.42 and 2,155,599.45 is: 2,974,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,141.67 : 5,507,774.42 = 2,155,599.45 : x
  2. Step 2: Convert to fraction form
    3,991,141.67/5,507,774.42 = 2,155,599.45/x
  3. Step 3: Cross multiply
    3,991,141.67x = 5,507,774.42 × 2,155,599.45
  4. Step 4: Simplify right side
    3,991,141.67x = 11,872,555,499,698.07
  5. Step 5: Solve for x
    x = 11,872,555,499,698.07/3,991,141.67
  6. Step 6: Final answer
    x = 2,974,726.66

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1.5x scale

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.