Home / 1,731.65-2,389.73-1,141.74

Finding the Fourth Proportional to 1,731.65, 2,389.73 and 1,141.74

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Solution

The fourth proportional to 1,731.65, 2,389.73 and 1,141.74 is: 1,575.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.65 : 2,389.73 = 1,141.74 : x
  2. Step 2: Convert to fraction form
    1,731.65/2,389.73 = 1,141.74/x
  3. Step 3: Cross multiply
    1,731.65x = 2,389.73 × 1,141.74
  4. Step 4: Simplify right side
    1,731.65x = 2,728,444.62
  5. Step 5: Solve for x
    x = 2,728,444.62/1,731.65
  6. Step 6: Final answer
    x = 1,575.64

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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.