Home / 1,784.16-2,675.55-613.94

Finding the Fourth Proportional to 1,784.16, 2,675.55 and 613.94

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Solution

The fourth proportional to 1,784.16, 2,675.55 and 613.94 is: 920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.16 : 2,675.55 = 613.94 : x
  2. Step 2: Convert to fraction form
    1,784.16/2,675.55 = 613.94/x
  3. Step 3: Cross multiply
    1,784.16x = 2,675.55 × 613.94
  4. Step 4: Simplify right side
    1,784.16x = 1,642,633.86
  5. Step 5: Solve for x
    x = 1,642,633.86/1,784.16
  6. Step 6: Final answer
    x = 920.68

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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.