Home / 4,107.56-5,666.45-2,690.63

Finding the Fourth Proportional to 4,107.56, 5,666.45 and 2,690.63

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Solution

The fourth proportional to 4,107.56, 5,666.45 and 2,690.63 is: 3,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,107.56 : 5,666.45 = 2,690.63 : x
  2. Step 2: Convert to fraction form
    4,107.56/5,666.45 = 2,690.63/x
  3. Step 3: Cross multiply
    4,107.56x = 5,666.45 × 2,690.63
  4. Step 4: Simplify right side
    4,107.56x = 15,246,278.58
  5. Step 5: Solve for x
    x = 15,246,278.58/4,107.56
  6. Step 6: Final answer
    x = 3,711.76

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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.