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Finding the Fourth Proportional to 3,210.56, 4,430.74 and 1,884.38

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Solution

The fourth proportional to 3,210.56, 4,430.74 and 1,884.38 is: 2,600.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.56 : 4,430.74 = 1,884.38 : x
  2. Step 2: Convert to fraction form
    3,210.56/4,430.74 = 1,884.38/x
  3. Step 3: Cross multiply
    3,210.56x = 4,430.74 × 1,884.38
  4. Step 4: Simplify right side
    3,210.56x = 8,349,197.84
  5. Step 5: Solve for x
    x = 8,349,197.84/3,210.56
  6. Step 6: Final answer
    x = 2,600.54

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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.