Home / 3,160.20-4,743.90-1,862.40

Finding the Fourth Proportional to 3,160.20, 4,743.90 and 1,862.40

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Solution

The fourth proportional to 3,160.20, 4,743.90 and 1,862.40 is: 2,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.20 : 4,743.90 = 1,862.40 : x
  2. Step 2: Convert to fraction form
    3,160.20/4,743.90 = 1,862.40/x
  3. Step 3: Cross multiply
    3,160.20x = 4,743.90 × 1,862.40
  4. Step 4: Simplify right side
    3,160.20x = 8,835,039.36
  5. Step 5: Solve for x
    x = 8,835,039.36/3,160.20
  6. Step 6: Final answer
    x = 2,795.72

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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.