Home / 5,759.67-8,638.80-1,810.76

Finding the Fourth Proportional to 5,759.67, 8,638.80 and 1,810.76

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Solution

The fourth proportional to 5,759.67, 8,638.80 and 1,810.76 is: 2,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.67 : 8,638.80 = 1,810.76 : x
  2. Step 2: Convert to fraction form
    5,759.67/8,638.80 = 1,810.76/x
  3. Step 3: Cross multiply
    5,759.67x = 8,638.80 × 1,810.76
  4. Step 4: Simplify right side
    5,759.67x = 15,642,750.29
  5. Step 5: Solve for x
    x = 15,642,750.29/5,759.67
  6. Step 6: Final answer
    x = 2,715.91

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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.