Home / 2,108.21-2,909.36-1,164.04

Finding the Fourth Proportional to 2,108.21, 2,909.36 and 1,164.04

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Solution

The fourth proportional to 2,108.21, 2,909.36 and 1,164.04 is: 1,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.21 : 2,909.36 = 1,164.04 : x
  2. Step 2: Convert to fraction form
    2,108.21/2,909.36 = 1,164.04/x
  3. Step 3: Cross multiply
    2,108.21x = 2,909.36 × 1,164.04
  4. Step 4: Simplify right side
    2,108.21x = 3,386,605.59
  5. Step 5: Solve for x
    x = 3,386,605.59/2,108.21
  6. Step 6: Final answer
    x = 1,606.39

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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.