Home / 3,914.22-5,402.65-2,421.27

Finding the Fourth Proportional to 3,914.22, 5,402.65 and 2,421.27

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Solution

The fourth proportional to 3,914.22, 5,402.65 and 2,421.27 is: 3,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.22 : 5,402.65 = 2,421.27 : x
  2. Step 2: Convert to fraction form
    3,914.22/5,402.65 = 2,421.27/x
  3. Step 3: Cross multiply
    3,914.22x = 5,402.65 × 2,421.27
  4. Step 4: Simplify right side
    3,914.22x = 13,081,262.26
  5. Step 5: Solve for x
    x = 13,081,262.26/3,914.22
  6. Step 6: Final answer
    x = 3,341.98

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1.5x scale

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.