Home / 1,184.54-1,634.20-810.87

Finding the Fourth Proportional to 1,184.54, 1,634.20 and 810.87

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Solution

The fourth proportional to 1,184.54, 1,634.20 and 810.87 is: 1,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.54 : 1,634.20 = 810.87 : x
  2. Step 2: Convert to fraction form
    1,184.54/1,634.20 = 810.87/x
  3. Step 3: Cross multiply
    1,184.54x = 1,634.20 × 810.87
  4. Step 4: Simplify right side
    1,184.54x = 1,325,123.75
  5. Step 5: Solve for x
    x = 1,325,123.75/1,184.54
  6. Step 6: Final answer
    x = 1,118.68

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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.