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Finding the Fourth Proportional to 2,579.72, 3,559.93 and 1,400.76

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Solution

The fourth proportional to 2,579.72, 3,559.93 and 1,400.76 is: 1,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.72 : 3,559.93 = 1,400.76 : x
  2. Step 2: Convert to fraction form
    2,579.72/3,559.93 = 1,400.76/x
  3. Step 3: Cross multiply
    2,579.72x = 3,559.93 × 1,400.76
  4. Step 4: Simplify right side
    2,579.72x = 4,986,604.04
  5. Step 5: Solve for x
    x = 4,986,604.04/2,579.72
  6. Step 6: Final answer
    x = 1,933.01

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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.