Home / 4,911.52-7,360.40-3,810.80

Finding the Fourth Proportional to 4,911.52, 7,360.40 and 3,810.80

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Solution

The fourth proportional to 4,911.52, 7,360.40 and 3,810.80 is: 5,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.52 : 7,360.40 = 3,810.80 : x
  2. Step 2: Convert to fraction form
    4,911.52/7,360.40 = 3,810.80/x
  3. Step 3: Cross multiply
    4,911.52x = 7,360.40 × 3,810.80
  4. Step 4: Simplify right side
    4,911.52x = 28,049,012.32
  5. Step 5: Solve for x
    x = 28,049,012.32/4,911.52
  6. Step 6: Final answer
    x = 5,710.86

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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.