Home / 2,456.10-3,683.73-812.47

Finding the Fourth Proportional to 2,456.10, 3,683.73 and 812.47

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Solution

The fourth proportional to 2,456.10, 3,683.73 and 812.47 is: 1,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.10 : 3,683.73 = 812.47 : x
  2. Step 2: Convert to fraction form
    2,456.10/3,683.73 = 812.47/x
  3. Step 3: Cross multiply
    2,456.10x = 3,683.73 × 812.47
  4. Step 4: Simplify right side
    2,456.10x = 2,992,920.11
  5. Step 5: Solve for x
    x = 2,992,920.11/2,456.10
  6. Step 6: Final answer
    x = 1,218.57

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1.5x scale

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.