Home / 2,756.58-3,799.65-2,158.06

Finding the Fourth Proportional to 2,756.58, 3,799.65 and 2,158.06

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Solution

The fourth proportional to 2,756.58, 3,799.65 and 2,158.06 is: 2,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.58 : 3,799.65 = 2,158.06 : x
  2. Step 2: Convert to fraction form
    2,756.58/3,799.65 = 2,158.06/x
  3. Step 3: Cross multiply
    2,756.58x = 3,799.65 × 2,158.06
  4. Step 4: Simplify right side
    2,756.58x = 8,199,853.68
  5. Step 5: Solve for x
    x = 8,199,853.68/2,756.58
  6. Step 6: Final answer
    x = 2,974.65

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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.