Home / 2,579.28-3,559.30-1,400.32

Finding the Fourth Proportional to 2,579.28, 3,559.30 and 1,400.32

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Solution

The fourth proportional to 2,579.28, 3,559.30 and 1,400.32 is: 1,932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.28 : 3,559.30 = 1,400.32 : x
  2. Step 2: Convert to fraction form
    2,579.28/3,559.30 = 1,400.32/x
  3. Step 3: Cross multiply
    2,579.28x = 3,559.30 × 1,400.32
  4. Step 4: Simplify right side
    2,579.28x = 4,984,158.98
  5. Step 5: Solve for x
    x = 4,984,158.98/2,579.28
  6. Step 6: Final answer
    x = 1,932.38

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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.