Home / 2,821,090.90-3,893,119.84-1,531,931.30

Finding the Fourth Proportional to 2,821,090.90, 3,893,119.84 and 1,531,931.30

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Solution

The fourth proportional to 2,821,090.90, 3,893,119.84 and 1,531,931.30 is: 2,114,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821,090.90 : 3,893,119.84 = 1,531,931.30 : x
  2. Step 2: Convert to fraction form
    2,821,090.90/3,893,119.84 = 1,531,931.30/x
  3. Step 3: Cross multiply
    2,821,090.90x = 3,893,119.84 × 1,531,931.30
  4. Step 4: Simplify right side
    2,821,090.90x = 5,963,992,137,546.99
  5. Step 5: Solve for x
    x = 5,963,992,137,546.99/2,821,090.90
  6. Step 6: Final answer
    x = 2,114,073.01

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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.