Home / 2,908.50-4,013.72-1,582.20

Finding the Fourth Proportional to 2,908.50, 4,013.72 and 1,582.20

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Solution

The fourth proportional to 2,908.50, 4,013.72 and 1,582.20 is: 2,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.50 : 4,013.72 = 1,582.20 : x
  2. Step 2: Convert to fraction form
    2,908.50/4,013.72 = 1,582.20/x
  3. Step 3: Cross multiply
    2,908.50x = 4,013.72 × 1,582.20
  4. Step 4: Simplify right side
    2,908.50x = 6,350,510.94
  5. Step 5: Solve for x
    x = 6,350,510.94/2,908.50
  6. Step 6: Final answer
    x = 2,183.43

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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.