Home / 4,827.40-7,239.92-1,539.81

Finding the Fourth Proportional to 4,827.40, 7,239.92 and 1,539.81

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Solution

The fourth proportional to 4,827.40, 7,239.92 and 1,539.81 is: 2,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.40 : 7,239.92 = 1,539.81 : x
  2. Step 2: Convert to fraction form
    4,827.40/7,239.92 = 1,539.81/x
  3. Step 3: Cross multiply
    4,827.40x = 7,239.92 × 1,539.81
  4. Step 4: Simplify right side
    4,827.40x = 11,148,093.52
  5. Step 5: Solve for x
    x = 11,148,093.52/4,827.40
  6. Step 6: Final answer
    x = 2,309.34

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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.