Home / 7,117.56-10,668.74-3,610.16

Finding the Fourth Proportional to 7,117.56, 10,668.74 and 3,610.16

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Solution

The fourth proportional to 7,117.56, 10,668.74 and 3,610.16 is: 5,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.56 : 10,668.74 = 3,610.16 : x
  2. Step 2: Convert to fraction form
    7,117.56/10,668.74 = 3,610.16/x
  3. Step 3: Cross multiply
    7,117.56x = 10,668.74 × 3,610.16
  4. Step 4: Simplify right side
    7,117.56x = 38,515,858.40
  5. Step 5: Solve for x
    x = 38,515,858.40/7,117.56
  6. Step 6: Final answer
    x = 5,411.39

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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.