Home / 2,664.90-3,987.70-1,625.13

Finding the Fourth Proportional to 2,664.90, 3,987.70 and 1,625.13

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Solution

The fourth proportional to 2,664.90, 3,987.70 and 1,625.13 is: 2,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.90 : 3,987.70 = 1,625.13 : x
  2. Step 2: Convert to fraction form
    2,664.90/3,987.70 = 1,625.13/x
  3. Step 3: Cross multiply
    2,664.90x = 3,987.70 × 1,625.13
  4. Step 4: Simplify right side
    2,664.90x = 6,480,526.84
  5. Step 5: Solve for x
    x = 6,480,526.84/2,664.90
  6. Step 6: Final answer
    x = 2,431.81

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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.