Home / 2,433.27-3,649.79-678.36

Finding the Fourth Proportional to 2,433.27, 3,649.79 and 678.36

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Solution

The fourth proportional to 2,433.27, 3,649.79 and 678.36 is: 1,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,433.27 : 3,649.79 = 678.36 : x
  2. Step 2: Convert to fraction form
    2,433.27/3,649.79 = 678.36/x
  3. Step 3: Cross multiply
    2,433.27x = 3,649.79 × 678.36
  4. Step 4: Simplify right side
    2,433.27x = 2,475,873.24
  5. Step 5: Solve for x
    x = 2,475,873.24/2,433.27
  6. Step 6: Final answer
    x = 1,017.51

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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.