Home / 3,402.79-4,693.87-2,221.81

Finding the Fourth Proportional to 3,402.79, 4,693.87 and 2,221.81

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Solution

The fourth proportional to 3,402.79, 4,693.87 and 2,221.81 is: 3,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.79 : 4,693.87 = 2,221.81 : x
  2. Step 2: Convert to fraction form
    3,402.79/4,693.87 = 2,221.81/x
  3. Step 3: Cross multiply
    3,402.79x = 4,693.87 × 2,221.81
  4. Step 4: Simplify right side
    3,402.79x = 10,428,887.30
  5. Step 5: Solve for x
    x = 10,428,887.30/3,402.79
  6. Step 6: Final answer
    x = 3,064.80

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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.