Home / 2,333.19-3,218.90-1,338.31

Finding the Fourth Proportional to 2,333.19, 3,218.90 and 1,338.31

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Solution

The fourth proportional to 2,333.19, 3,218.90 and 1,338.31 is: 1,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.19 : 3,218.90 = 1,338.31 : x
  2. Step 2: Convert to fraction form
    2,333.19/3,218.90 = 1,338.31/x
  3. Step 3: Cross multiply
    2,333.19x = 3,218.90 × 1,338.31
  4. Step 4: Simplify right side
    2,333.19x = 4,307,886.06
  5. Step 5: Solve for x
    x = 4,307,886.06/2,333.19
  6. Step 6: Final answer
    x = 1,846.35

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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.