Home / 6,428.95-9,632.41-3,509.30

Finding the Fourth Proportional to 6,428.95, 9,632.41 and 3,509.30

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Solution

The fourth proportional to 6,428.95, 9,632.41 and 3,509.30 is: 5,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.95 : 9,632.41 = 3,509.30 : x
  2. Step 2: Convert to fraction form
    6,428.95/9,632.41 = 3,509.30/x
  3. Step 3: Cross multiply
    6,428.95x = 9,632.41 × 3,509.30
  4. Step 4: Simplify right side
    6,428.95x = 33,803,031.72
  5. Step 5: Solve for x
    x = 33,803,031.72/6,428.95
  6. Step 6: Final answer
    x = 5,257.94

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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.