Home / 6,689.55-10,040.50-3,405.01

Finding the Fourth Proportional to 6,689.55, 10,040.50 and 3,405.01

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Solution

The fourth proportional to 6,689.55, 10,040.50 and 3,405.01 is: 5,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.55 : 10,040.50 = 3,405.01 : x
  2. Step 2: Convert to fraction form
    6,689.55/10,040.50 = 3,405.01/x
  3. Step 3: Cross multiply
    6,689.55x = 10,040.50 × 3,405.01
  4. Step 4: Simplify right side
    6,689.55x = 34,187,985.88
  5. Step 5: Solve for x
    x = 34,187,985.88/6,689.55
  6. Step 6: Final answer
    x = 5,110.66

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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.