Home / 2,108.04-2,909.10-1,176.60

Finding the Fourth Proportional to 2,108.04, 2,909.10 and 1,176.60

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Solution

The fourth proportional to 2,108.04, 2,909.10 and 1,176.60 is: 1,623.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.04 : 2,909.10 = 1,176.60 : x
  2. Step 2: Convert to fraction form
    2,108.04/2,909.10 = 1,176.60/x
  3. Step 3: Cross multiply
    2,108.04x = 2,909.10 × 1,176.60
  4. Step 4: Simplify right side
    2,108.04x = 3,422,847.06
  5. Step 5: Solve for x
    x = 3,422,847.06/2,108.04
  6. Step 6: Final answer
    x = 1,623.71

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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.