Home / 2,491.12-3,436.92-1,607.51

Finding the Fourth Proportional to 2,491.12, 3,436.92 and 1,607.51

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Solution

The fourth proportional to 2,491.12, 3,436.92 and 1,607.51 is: 2,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.12 : 3,436.92 = 1,607.51 : x
  2. Step 2: Convert to fraction form
    2,491.12/3,436.92 = 1,607.51/x
  3. Step 3: Cross multiply
    2,491.12x = 3,436.92 × 1,607.51
  4. Step 4: Simplify right side
    2,491.12x = 5,524,887.29
  5. Step 5: Solve for x
    x = 5,524,887.29/2,491.12
  6. Step 6: Final answer
    x = 2,217.83

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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.