Home / 1,617.81-2,426.71-1,291.65

Finding the Fourth Proportional to 1,617.81, 2,426.71 and 1,291.65

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Solution

The fourth proportional to 1,617.81, 2,426.71 and 1,291.65 is: 1,937.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.81 : 2,426.71 = 1,291.65 : x
  2. Step 2: Convert to fraction form
    1,617.81/2,426.71 = 1,291.65/x
  3. Step 3: Cross multiply
    1,617.81x = 2,426.71 × 1,291.65
  4. Step 4: Simplify right side
    1,617.81x = 3,134,459.97
  5. Step 5: Solve for x
    x = 3,134,459.97/1,617.81
  6. Step 6: Final answer
    x = 1,937.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.