Home / 2,418.47-3,336.09-1,423.56

Finding the Fourth Proportional to 2,418.47, 3,336.09 and 1,423.56

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Solution

The fourth proportional to 2,418.47, 3,336.09 and 1,423.56 is: 1,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.47 : 3,336.09 = 1,423.56 : x
  2. Step 2: Convert to fraction form
    2,418.47/3,336.09 = 1,423.56/x
  3. Step 3: Cross multiply
    2,418.47x = 3,336.09 × 1,423.56
  4. Step 4: Simplify right side
    2,418.47x = 4,749,124.28
  5. Step 5: Solve for x
    x = 4,749,124.28/2,418.47
  6. Step 6: Final answer
    x = 1,963.69

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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.