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Finding the Fourth Proportional to 4,203.99, 6,305.04 and 1,281.51

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Solution

The fourth proportional to 4,203.99, 6,305.04 and 1,281.51 is: 1,921.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,203.99 : 6,305.04 = 1,281.51 : x
  2. Step 2: Convert to fraction form
    4,203.99/6,305.04 = 1,281.51/x
  3. Step 3: Cross multiply
    4,203.99x = 6,305.04 × 1,281.51
  4. Step 4: Simplify right side
    4,203.99x = 8,079,971.81
  5. Step 5: Solve for x
    x = 8,079,971.81/4,203.99
  6. Step 6: Final answer
    x = 1,921.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.