Home / 1,229.91-1,845.63-710.94

Finding the Fourth Proportional to 1,229.91, 1,845.63 and 710.94

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Solution

The fourth proportional to 1,229.91, 1,845.63 and 710.94 is: 1,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.91 : 1,845.63 = 710.94 : x
  2. Step 2: Convert to fraction form
    1,229.91/1,845.63 = 710.94/x
  3. Step 3: Cross multiply
    1,229.91x = 1,845.63 × 710.94
  4. Step 4: Simplify right side
    1,229.91x = 1,312,128.64
  5. Step 5: Solve for x
    x = 1,312,128.64/1,229.91
  6. Step 6: Final answer
    x = 1,066.85

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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.