Home / 1,212.46-1,661.54-1,095.82

Finding the Fourth Proportional to 1,212.46, 1,661.54 and 1,095.82

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Solution

The fourth proportional to 1,212.46, 1,661.54 and 1,095.82 is: 1,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212.46 : 1,661.54 = 1,095.82 : x
  2. Step 2: Convert to fraction form
    1,212.46/1,661.54 = 1,095.82/x
  3. Step 3: Cross multiply
    1,212.46x = 1,661.54 × 1,095.82
  4. Step 4: Simplify right side
    1,212.46x = 1,820,748.76
  5. Step 5: Solve for x
    x = 1,820,748.76/1,212.46
  6. Step 6: Final answer
    x = 1,501.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.