Home / 2,430.51-3,350.10-2,221.38

Finding the Fourth Proportional to 2,430.51, 3,350.10 and 2,221.38

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Solution

The fourth proportional to 2,430.51, 3,350.10 and 2,221.38 is: 3,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.51 : 3,350.10 = 2,221.38 : x
  2. Step 2: Convert to fraction form
    2,430.51/3,350.10 = 2,221.38/x
  3. Step 3: Cross multiply
    2,430.51x = 3,350.10 × 2,221.38
  4. Step 4: Simplify right side
    2,430.51x = 7,441,845.14
  5. Step 5: Solve for x
    x = 7,441,845.14/2,430.51
  6. Step 6: Final answer
    x = 3,061.85

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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.