Home / 3,910,880.25-5,868,001.89-1,890,643.28

Finding the Fourth Proportional to 3,910,880.25, 5,868,001.89 and 1,890,643.28

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Solution

The fourth proportional to 3,910,880.25, 5,868,001.89 and 1,890,643.28 is: 2,836,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910,880.25 : 5,868,001.89 = 1,890,643.28 : x
  2. Step 2: Convert to fraction form
    3,910,880.25/5,868,001.89 = 1,890,643.28/x
  3. Step 3: Cross multiply
    3,910,880.25x = 5,868,001.89 × 1,890,643.28
  4. Step 4: Simplify right side
    3,910,880.25x = 11,094,298,316,333.22
  5. Step 5: Solve for x
    x = 11,094,298,316,333.22/3,910,880.25
  6. Step 6: Final answer
    x = 2,836,777.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.