Home / 7,479.02-10,321.11-4,121.95

Finding the Fourth Proportional to 7,479.02, 10,321.11 and 4,121.95

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Solution

The fourth proportional to 7,479.02, 10,321.11 and 4,121.95 is: 5,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.02 : 10,321.11 = 4,121.95 : x
  2. Step 2: Convert to fraction form
    7,479.02/10,321.11 = 4,121.95/x
  3. Step 3: Cross multiply
    7,479.02x = 10,321.11 × 4,121.95
  4. Step 4: Simplify right side
    7,479.02x = 42,543,127.72
  5. Step 5: Solve for x
    x = 42,543,127.72/7,479.02
  6. Step 6: Final answer
    x = 5,688.33

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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.