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Finding the Fourth Proportional to 3,210.52, 4,430.52 and 1,813.27

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Solution

The fourth proportional to 3,210.52, 4,430.52 and 1,813.27 is: 2,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.52 : 4,430.52 = 1,813.27 : x
  2. Step 2: Convert to fraction form
    3,210.52/4,430.52 = 1,813.27/x
  3. Step 3: Cross multiply
    3,210.52x = 4,430.52 × 1,813.27
  4. Step 4: Simplify right side
    3,210.52x = 8,033,729.00
  5. Step 5: Solve for x
    x = 8,033,729.00/3,210.52
  6. Step 6: Final answer
    x = 2,502.31

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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.