Home / 1,891.24-2,609.17-1,395.07

Finding the Fourth Proportional to 1,891.24, 2,609.17 and 1,395.07

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Solution

The fourth proportional to 1,891.24, 2,609.17 and 1,395.07 is: 1,924.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.24 : 2,609.17 = 1,395.07 : x
  2. Step 2: Convert to fraction form
    1,891.24/2,609.17 = 1,395.07/x
  3. Step 3: Cross multiply
    1,891.24x = 2,609.17 × 1,395.07
  4. Step 4: Simplify right side
    1,891.24x = 3,639,974.79
  5. Step 5: Solve for x
    x = 3,639,974.79/1,891.24
  6. Step 6: Final answer
    x = 1,924.65

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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.