Home / 3,079.45-4,248.43-1,898.47

Finding the Fourth Proportional to 3,079.45, 4,248.43 and 1,898.47

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Solution

The fourth proportional to 3,079.45, 4,248.43 and 1,898.47 is: 2,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.45 : 4,248.43 = 1,898.47 : x
  2. Step 2: Convert to fraction form
    3,079.45/4,248.43 = 1,898.47/x
  3. Step 3: Cross multiply
    3,079.45x = 4,248.43 × 1,898.47
  4. Step 4: Simplify right side
    3,079.45x = 8,065,516.90
  5. Step 5: Solve for x
    x = 8,065,516.90/3,079.45
  6. Step 6: Final answer
    x = 2,619.14

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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.