Home / 2,320.79-3,198.29-1,899.18

Finding the Fourth Proportional to 2,320.79, 3,198.29 and 1,899.18

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Solution

The fourth proportional to 2,320.79, 3,198.29 and 1,899.18 is: 2,617.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.79 : 3,198.29 = 1,899.18 : x
  2. Step 2: Convert to fraction form
    2,320.79/3,198.29 = 1,899.18/x
  3. Step 3: Cross multiply
    2,320.79x = 3,198.29 × 1,899.18
  4. Step 4: Simplify right side
    2,320.79x = 6,074,118.91
  5. Step 5: Solve for x
    x = 6,074,118.91/2,320.79
  6. Step 6: Final answer
    x = 2,617.27

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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.