Home / 1,448.46-2,176.53-790.82

Finding the Fourth Proportional to 1,448.46, 2,176.53 and 790.82

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Solution

The fourth proportional to 1,448.46, 2,176.53 and 790.82 is: 1,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.46 : 2,176.53 = 790.82 : x
  2. Step 2: Convert to fraction form
    1,448.46/2,176.53 = 790.82/x
  3. Step 3: Cross multiply
    1,448.46x = 2,176.53 × 790.82
  4. Step 4: Simplify right side
    1,448.46x = 1,721,236.10
  5. Step 5: Solve for x
    x = 1,721,236.10/1,448.46
  6. Step 6: Final answer
    x = 1,188.32

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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.