Home / 3,134.57-4,326.89-2,690.69

Finding the Fourth Proportional to 3,134.57, 4,326.89 and 2,690.69

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Solution

The fourth proportional to 3,134.57, 4,326.89 and 2,690.69 is: 3,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.57 : 4,326.89 = 2,690.69 : x
  2. Step 2: Convert to fraction form
    3,134.57/4,326.89 = 2,690.69/x
  3. Step 3: Cross multiply
    3,134.57x = 4,326.89 × 2,690.69
  4. Step 4: Simplify right side
    3,134.57x = 11,642,284.57
  5. Step 5: Solve for x
    x = 11,642,284.57/3,134.57
  6. Step 6: Final answer
    x = 3,714.16

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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.