Home / 5,078.48-7,008.84-2,983.76

Finding the Fourth Proportional to 5,078.48, 7,008.84 and 2,983.76

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Solution

The fourth proportional to 5,078.48, 7,008.84 and 2,983.76 is: 4,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.48 : 7,008.84 = 2,983.76 : x
  2. Step 2: Convert to fraction form
    5,078.48/7,008.84 = 2,983.76/x
  3. Step 3: Cross multiply
    5,078.48x = 7,008.84 × 2,983.76
  4. Step 4: Simplify right side
    5,078.48x = 20,912,696.44
  5. Step 5: Solve for x
    x = 20,912,696.44/5,078.48
  6. Step 6: Final answer
    x = 4,117.90

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1.5x scale

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.