Home / 1,483.23-2,046.87-820.14

Finding the Fourth Proportional to 1,483.23, 2,046.87 and 820.14

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Solution

The fourth proportional to 1,483.23, 2,046.87 and 820.14 is: 1,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.23 : 2,046.87 = 820.14 : x
  2. Step 2: Convert to fraction form
    1,483.23/2,046.87 = 820.14/x
  3. Step 3: Cross multiply
    1,483.23x = 2,046.87 × 820.14
  4. Step 4: Simplify right side
    1,483.23x = 1,678,719.96
  5. Step 5: Solve for x
    x = 1,678,719.96/1,483.23
  6. Step 6: Final answer
    x = 1,131.80

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1.5x scale

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.