Home / 1,784.08-2,675.51-613.86

Finding the Fourth Proportional to 1,784.08, 2,675.51 and 613.86

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Solution

The fourth proportional to 1,784.08, 2,675.51 and 613.86 is: 920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.08 : 2,675.51 = 613.86 : x
  2. Step 2: Convert to fraction form
    1,784.08/2,675.51 = 613.86/x
  3. Step 3: Cross multiply
    1,784.08x = 2,675.51 × 613.86
  4. Step 4: Simplify right side
    1,784.08x = 1,642,388.57
  5. Step 5: Solve for x
    x = 1,642,388.57/1,784.08
  6. Step 6: Final answer
    x = 920.58

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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.