Home / 5,509.36-7,602.88-2,991.42

Finding the Fourth Proportional to 5,509.36, 7,602.88 and 2,991.42

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Solution

The fourth proportional to 5,509.36, 7,602.88 and 2,991.42 is: 4,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.36 : 7,602.88 = 2,991.42 : x
  2. Step 2: Convert to fraction form
    5,509.36/7,602.88 = 2,991.42/x
  3. Step 3: Cross multiply
    5,509.36x = 7,602.88 × 2,991.42
  4. Step 4: Simplify right side
    5,509.36x = 22,743,392.33
  5. Step 5: Solve for x
    x = 22,743,392.33/5,509.36
  6. Step 6: Final answer
    x = 4,128.14

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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.