Home / 3,972,131.04-5,476,417.20-2,885,979.36

Finding the Fourth Proportional to 3,972,131.04, 5,476,417.20 and 2,885,979.36

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Solution

The fourth proportional to 3,972,131.04, 5,476,417.20 and 2,885,979.36 is: 3,978,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972,131.04 : 5,476,417.20 = 2,885,979.36 : x
  2. Step 2: Convert to fraction form
    3,972,131.04/5,476,417.20 = 2,885,979.36/x
  3. Step 3: Cross multiply
    3,972,131.04x = 5,476,417.20 × 2,885,979.36
  4. Step 4: Simplify right side
    3,972,131.04x = 15,804,827,005,948.99
  5. Step 5: Solve for x
    x = 15,804,827,005,948.99/3,972,131.04
  6. Step 6: Final answer
    x = 3,978,928.90

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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.