Home / 2,707.18-4,061.19-976.21

Finding the Fourth Proportional to 2,707.18, 4,061.19 and 976.21

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Solution

The fourth proportional to 2,707.18, 4,061.19 and 976.21 is: 1,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.18 : 4,061.19 = 976.21 : x
  2. Step 2: Convert to fraction form
    2,707.18/4,061.19 = 976.21/x
  3. Step 3: Cross multiply
    2,707.18x = 4,061.19 × 976.21
  4. Step 4: Simplify right side
    2,707.18x = 3,964,574.29
  5. Step 5: Solve for x
    x = 3,964,574.29/2,707.18
  6. Step 6: Final answer
    x = 1,464.47

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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.