Home / 2,108.12-2,909.10-1,176.44

Finding the Fourth Proportional to 2,108.12, 2,909.10 and 1,176.44

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Solution

The fourth proportional to 2,108.12, 2,909.10 and 1,176.44 is: 1,623.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.12 : 2,909.10 = 1,176.44 : x
  2. Step 2: Convert to fraction form
    2,108.12/2,909.10 = 1,176.44/x
  3. Step 3: Cross multiply
    2,108.12x = 2,909.10 × 1,176.44
  4. Step 4: Simplify right side
    2,108.12x = 3,422,381.60
  5. Step 5: Solve for x
    x = 3,422,381.60/2,108.12
  6. Step 6: Final answer
    x = 1,623.43

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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.