Home / 2,129,840.61-2,939,190.83-1,162,970.88

Finding the Fourth Proportional to 2,129,840.61, 2,939,190.83 and 1,162,970.88

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Solution

The fourth proportional to 2,129,840.61, 2,939,190.83 and 1,162,970.88 is: 1,604,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,840.61 : 2,939,190.83 = 1,162,970.88 : x
  2. Step 2: Convert to fraction form
    2,129,840.61/2,939,190.83 = 1,162,970.88/x
  3. Step 3: Cross multiply
    2,129,840.61x = 2,939,190.83 × 1,162,970.88
  4. Step 4: Simplify right side
    2,129,840.61x = 3,418,193,346,053.03
  5. Step 5: Solve for x
    x = 3,418,193,346,053.03/2,129,840.61
  6. Step 6: Final answer
    x = 1,604,905.71

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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.