Home / 2,108.40-2,909.58-1,164.18

Finding the Fourth Proportional to 2,108.40, 2,909.58 and 1,164.18

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Solution

The fourth proportional to 2,108.40, 2,909.58 and 1,164.18 is: 1,606.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.40 : 2,909.58 = 1,164.18 : x
  2. Step 2: Convert to fraction form
    2,108.40/2,909.58 = 1,164.18/x
  3. Step 3: Cross multiply
    2,108.40x = 2,909.58 × 1,164.18
  4. Step 4: Simplify right side
    2,108.40x = 3,387,274.84
  5. Step 5: Solve for x
    x = 3,387,274.84/2,108.40
  6. Step 6: Final answer
    x = 1,606.56

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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.