Home / 5,549.49-7,661.12-4,287.70

Finding the Fourth Proportional to 5,549.49, 7,661.12 and 4,287.70

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Solution

The fourth proportional to 5,549.49, 7,661.12 and 4,287.70 is: 5,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.49 : 7,661.12 = 4,287.70 : x
  2. Step 2: Convert to fraction form
    5,549.49/7,661.12 = 4,287.70/x
  3. Step 3: Cross multiply
    5,549.49x = 7,661.12 × 4,287.70
  4. Step 4: Simplify right side
    5,549.49x = 32,848,584.22
  5. Step 5: Solve for x
    x = 32,848,584.22/5,549.49
  6. Step 6: Final answer
    x = 5,919.21

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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.