Home / 3,122.47-4,686.02-1,479.02

Finding the Fourth Proportional to 3,122.47, 4,686.02 and 1,479.02

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Solution

The fourth proportional to 3,122.47, 4,686.02 and 1,479.02 is: 2,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.47 : 4,686.02 = 1,479.02 : x
  2. Step 2: Convert to fraction form
    3,122.47/4,686.02 = 1,479.02/x
  3. Step 3: Cross multiply
    3,122.47x = 4,686.02 × 1,479.02
  4. Step 4: Simplify right side
    3,122.47x = 6,930,709.91
  5. Step 5: Solve for x
    x = 6,930,709.91/3,122.47
  6. Step 6: Final answer
    x = 2,219.62

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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.