Home / 1,046.45-1,442.67-766.19

Finding the Fourth Proportional to 1,046.45, 1,442.67 and 766.19

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Solution

The fourth proportional to 1,046.45, 1,442.67 and 766.19 is: 1,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.45 : 1,442.67 = 766.19 : x
  2. Step 2: Convert to fraction form
    1,046.45/1,442.67 = 766.19/x
  3. Step 3: Cross multiply
    1,046.45x = 1,442.67 × 766.19
  4. Step 4: Simplify right side
    1,046.45x = 1,105,359.33
  5. Step 5: Solve for x
    x = 1,105,359.33/1,046.45
  6. Step 6: Final answer
    x = 1,056.29

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.