Home / 2,418.39-3,337.43-1,423.31

Finding the Fourth Proportional to 2,418.39, 3,337.43 and 1,423.31

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Solution

The fourth proportional to 2,418.39, 3,337.43 and 1,423.31 is: 1,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.39 : 3,337.43 = 1,423.31 : x
  2. Step 2: Convert to fraction form
    2,418.39/3,337.43 = 1,423.31/x
  3. Step 3: Cross multiply
    2,418.39x = 3,337.43 × 1,423.31
  4. Step 4: Simplify right side
    2,418.39x = 4,750,173.69
  5. Step 5: Solve for x
    x = 4,750,173.69/2,418.39
  6. Step 6: Final answer
    x = 1,964.19

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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.