Home / 5,106.61-7,660.58-1,820.65

Finding the Fourth Proportional to 5,106.61, 7,660.58 and 1,820.65

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Solution

The fourth proportional to 5,106.61, 7,660.58 and 1,820.65 is: 2,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.61 : 7,660.58 = 1,820.65 : x
  2. Step 2: Convert to fraction form
    5,106.61/7,660.58 = 1,820.65/x
  3. Step 3: Cross multiply
    5,106.61x = 7,660.58 × 1,820.65
  4. Step 4: Simplify right side
    5,106.61x = 13,947,225.87
  5. Step 5: Solve for x
    x = 13,947,225.87/5,106.61
  6. Step 6: Final answer
    x = 2,731.21

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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.