Home / 7,120.26-10,683.14-2,959.20

Finding the Fourth Proportional to 7,120.26, 10,683.14 and 2,959.20

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Solution

The fourth proportional to 7,120.26, 10,683.14 and 2,959.20 is: 4,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.26 : 10,683.14 = 2,959.20 : x
  2. Step 2: Convert to fraction form
    7,120.26/10,683.14 = 2,959.20/x
  3. Step 3: Cross multiply
    7,120.26x = 10,683.14 × 2,959.20
  4. Step 4: Simplify right side
    7,120.26x = 31,613,547.89
  5. Step 5: Solve for x
    x = 31,613,547.89/7,120.26
  6. Step 6: Final answer
    x = 4,439.94

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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.