Home / 1,730.96-2,389.07-1,206.69

Finding the Fourth Proportional to 1,730.96, 2,389.07 and 1,206.69

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Solution

The fourth proportional to 1,730.96, 2,389.07 and 1,206.69 is: 1,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.96 : 2,389.07 = 1,206.69 : x
  2. Step 2: Convert to fraction form
    1,730.96/2,389.07 = 1,206.69/x
  3. Step 3: Cross multiply
    1,730.96x = 2,389.07 × 1,206.69
  4. Step 4: Simplify right side
    1,730.96x = 2,882,860.84
  5. Step 5: Solve for x
    x = 2,882,860.84/1,730.96
  6. Step 6: Final answer
    x = 1,665.47

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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.