Home / 2,431.31-3,347.84-2,037.65

Finding the Fourth Proportional to 2,431.31, 3,347.84 and 2,037.65

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Solution

The fourth proportional to 2,431.31, 3,347.84 and 2,037.65 is: 2,805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.31 : 3,347.84 = 2,037.65 : x
  2. Step 2: Convert to fraction form
    2,431.31/3,347.84 = 2,037.65/x
  3. Step 3: Cross multiply
    2,431.31x = 3,347.84 × 2,037.65
  4. Step 4: Simplify right side
    2,431.31x = 6,821,714.53
  5. Step 5: Solve for x
    x = 6,821,714.53/2,431.31
  6. Step 6: Final answer
    x = 2,805.78

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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.