Home / 7,419.16-11,126.88-2,154.16

Finding the Fourth Proportional to 7,419.16, 11,126.88 and 2,154.16

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Solution

The fourth proportional to 7,419.16, 11,126.88 and 2,154.16 is: 3,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.16 : 11,126.88 = 2,154.16 : x
  2. Step 2: Convert to fraction form
    7,419.16/11,126.88 = 2,154.16/x
  3. Step 3: Cross multiply
    7,419.16x = 11,126.88 × 2,154.16
  4. Step 4: Simplify right side
    7,419.16x = 23,969,079.82
  5. Step 5: Solve for x
    x = 23,969,079.82/7,419.16
  6. Step 6: Final answer
    x = 3,230.70

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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.