Home / 2,108.68-3,157.50-1,376.20

Finding the Fourth Proportional to 2,108.68, 3,157.50 and 1,376.20

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Solution

The fourth proportional to 2,108.68, 3,157.50 and 1,376.20 is: 2,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.68 : 3,157.50 = 1,376.20 : x
  2. Step 2: Convert to fraction form
    2,108.68/3,157.50 = 1,376.20/x
  3. Step 3: Cross multiply
    2,108.68x = 3,157.50 × 1,376.20
  4. Step 4: Simplify right side
    2,108.68x = 4,345,351.50
  5. Step 5: Solve for x
    x = 4,345,351.50/2,108.68
  6. Step 6: Final answer
    x = 2,060.70

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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.