Home / 7,742.65-11,614.79-2,547.31

Finding the Fourth Proportional to 7,742.65, 11,614.79 and 2,547.31

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Solution

The fourth proportional to 7,742.65, 11,614.79 and 2,547.31 is: 3,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.65 : 11,614.79 = 2,547.31 : x
  2. Step 2: Convert to fraction form
    7,742.65/11,614.79 = 2,547.31/x
  3. Step 3: Cross multiply
    7,742.65x = 11,614.79 × 2,547.31
  4. Step 4: Simplify right side
    7,742.65x = 29,586,470.71
  5. Step 5: Solve for x
    x = 29,586,470.71/7,742.65
  6. Step 6: Final answer
    x = 3,821.23

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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.