Home / 2,579.13-3,559.20-1,400.20

Finding the Fourth Proportional to 2,579.13, 3,559.20 and 1,400.20

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Solution

The fourth proportional to 2,579.13, 3,559.20 and 1,400.20 is: 1,932.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.13 : 3,559.20 = 1,400.20 : x
  2. Step 2: Convert to fraction form
    2,579.13/3,559.20 = 1,400.20/x
  3. Step 3: Cross multiply
    2,579.13x = 3,559.20 × 1,400.20
  4. Step 4: Simplify right side
    2,579.13x = 4,983,591.84
  5. Step 5: Solve for x
    x = 4,983,591.84/2,579.13
  6. Step 6: Final answer
    x = 1,932.28

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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.