Home / 4,990.16-7,480.92-1,910

Finding the Fourth Proportional to 4,990.16, 7,480.92 and 1,910

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Solution

The fourth proportional to 4,990.16, 7,480.92 and 1,910 is: 2,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.16 : 7,480.92 = 1,910 : x
  2. Step 2: Convert to fraction form
    4,990.16/7,480.92 = 1,910/x
  3. Step 3: Cross multiply
    4,990.16x = 7,480.92 × 1,910
  4. Step 4: Simplify right side
    4,990.16x = 14,288,557.20
  5. Step 5: Solve for x
    x = 14,288,557.20/4,990.16
  6. Step 6: Final answer
    x = 2,863.35

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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.