Home / 2,108.32-2,909.64-1,176.84

Finding the Fourth Proportional to 2,108.32, 2,909.64 and 1,176.84

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Solution

The fourth proportional to 2,108.32, 2,909.64 and 1,176.84 is: 1,624.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.32 : 2,909.64 = 1,176.84 : x
  2. Step 2: Convert to fraction form
    2,108.32/2,909.64 = 1,176.84/x
  3. Step 3: Cross multiply
    2,108.32x = 2,909.64 × 1,176.84
  4. Step 4: Simplify right side
    2,108.32x = 3,424,180.74
  5. Step 5: Solve for x
    x = 3,424,180.74/2,108.32
  6. Step 6: Final answer
    x = 1,624.13

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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.