Home / 7,090.14-10,636.79-2,160.16

Finding the Fourth Proportional to 7,090.14, 10,636.79 and 2,160.16

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Solution

The fourth proportional to 7,090.14, 10,636.79 and 2,160.16 is: 3,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.14 : 10,636.79 = 2,160.16 : x
  2. Step 2: Convert to fraction form
    7,090.14/10,636.79 = 2,160.16/x
  3. Step 3: Cross multiply
    7,090.14x = 10,636.79 × 2,160.16
  4. Step 4: Simplify right side
    7,090.14x = 22,977,168.29
  5. Step 5: Solve for x
    x = 22,977,168.29/7,090.14
  6. Step 6: Final answer
    x = 3,240.72

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1.5x scale

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.