Home / 6,511.45-8,985.81-3,527.31

Finding the Fourth Proportional to 6,511.45, 8,985.81 and 3,527.31

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Solution

The fourth proportional to 6,511.45, 8,985.81 and 3,527.31 is: 4,867.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.45 : 8,985.81 = 3,527.31 : x
  2. Step 2: Convert to fraction form
    6,511.45/8,985.81 = 3,527.31/x
  3. Step 3: Cross multiply
    6,511.45x = 8,985.81 × 3,527.31
  4. Step 4: Simplify right side
    6,511.45x = 31,695,737.47
  5. Step 5: Solve for x
    x = 31,695,737.47/6,511.45
  6. Step 6: Final answer
    x = 4,867.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.