Home / 7,154.07-9,872.49-4,170.03

Finding the Fourth Proportional to 7,154.07, 9,872.49 and 4,170.03

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Solution

The fourth proportional to 7,154.07, 9,872.49 and 4,170.03 is: 5,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.07 : 9,872.49 = 4,170.03 : x
  2. Step 2: Convert to fraction form
    7,154.07/9,872.49 = 4,170.03/x
  3. Step 3: Cross multiply
    7,154.07x = 9,872.49 × 4,170.03
  4. Step 4: Simplify right side
    7,154.07x = 41,168,579.47
  5. Step 5: Solve for x
    x = 41,168,579.47/7,154.07
  6. Step 6: Final answer
    x = 5,754.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.