Home / 1,546.27-2,133.85-838.12

Finding the Fourth Proportional to 1,546.27, 2,133.85 and 838.12

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Solution

The fourth proportional to 1,546.27, 2,133.85 and 838.12 is: 1,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.27 : 2,133.85 = 838.12 : x
  2. Step 2: Convert to fraction form
    1,546.27/2,133.85 = 838.12/x
  3. Step 3: Cross multiply
    1,546.27x = 2,133.85 × 838.12
  4. Step 4: Simplify right side
    1,546.27x = 1,788,416.50
  5. Step 5: Solve for x
    x = 1,788,416.50/1,546.27
  6. Step 6: Final answer
    x = 1,156.60

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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.