Home / 3,890.76-5,838.45-1,551.89

Finding the Fourth Proportional to 3,890.76, 5,838.45 and 1,551.89

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Solution

The fourth proportional to 3,890.76, 5,838.45 and 1,551.89 is: 2,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.76 : 5,838.45 = 1,551.89 : x
  2. Step 2: Convert to fraction form
    3,890.76/5,838.45 = 1,551.89/x
  3. Step 3: Cross multiply
    3,890.76x = 5,838.45 × 1,551.89
  4. Step 4: Simplify right side
    3,890.76x = 9,060,602.98
  5. Step 5: Solve for x
    x = 9,060,602.98/3,890.76
  6. Step 6: Final answer
    x = 2,328.75

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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.