Home / 1,716.89-2,379.28-1,684.07

Finding the Fourth Proportional to 1,716.89, 2,379.28 and 1,684.07

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Solution

The fourth proportional to 1,716.89, 2,379.28 and 1,684.07 is: 2,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.89 : 2,379.28 = 1,684.07 : x
  2. Step 2: Convert to fraction form
    1,716.89/2,379.28 = 1,684.07/x
  3. Step 3: Cross multiply
    1,716.89x = 2,379.28 × 1,684.07
  4. Step 4: Simplify right side
    1,716.89x = 4,006,878.28
  5. Step 5: Solve for x
    x = 4,006,878.28/1,716.89
  6. Step 6: Final answer
    x = 2,333.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.