Home / 1,632.89-2,447.80-810.38

Finding the Fourth Proportional to 1,632.89, 2,447.80 and 810.38

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Solution

The fourth proportional to 1,632.89, 2,447.80 and 810.38 is: 1,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.89 : 2,447.80 = 810.38 : x
  2. Step 2: Convert to fraction form
    1,632.89/2,447.80 = 810.38/x
  3. Step 3: Cross multiply
    1,632.89x = 2,447.80 × 810.38
  4. Step 4: Simplify right side
    1,632.89x = 1,983,631.87
  5. Step 5: Solve for x
    x = 1,983,631.87/1,632.89
  6. Step 6: Final answer
    x = 1,214.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.