Home / 2,600.21-3,588.32-1,421.30

Finding the Fourth Proportional to 2,600.21, 3,588.32 and 1,421.30

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Solution

The fourth proportional to 2,600.21, 3,588.32 and 1,421.30 is: 1,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.21 : 3,588.32 = 1,421.30 : x
  2. Step 2: Convert to fraction form
    2,600.21/3,588.32 = 1,421.30/x
  3. Step 3: Cross multiply
    2,600.21x = 3,588.32 × 1,421.30
  4. Step 4: Simplify right side
    2,600.21x = 5,100,054.17
  5. Step 5: Solve for x
    x = 5,100,054.17/2,600.21
  6. Step 6: Final answer
    x = 1,961.40

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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.