Home / 3,078.40-4,619.76-1,348.24

Finding the Fourth Proportional to 3,078.40, 4,619.76 and 1,348.24

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Solution

The fourth proportional to 3,078.40, 4,619.76 and 1,348.24 is: 2,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.40 : 4,619.76 = 1,348.24 : x
  2. Step 2: Convert to fraction form
    3,078.40/4,619.76 = 1,348.24/x
  3. Step 3: Cross multiply
    3,078.40x = 4,619.76 × 1,348.24
  4. Step 4: Simplify right side
    3,078.40x = 6,228,545.22
  5. Step 5: Solve for x
    x = 6,228,545.22/3,078.40
  6. Step 6: Final answer
    x = 2,023.31

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1.5x scale

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.