Home / 5,331.12-7,356.72-2,973.20

Finding the Fourth Proportional to 5,331.12, 7,356.72 and 2,973.20

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Solution

The fourth proportional to 5,331.12, 7,356.72 and 2,973.20 is: 4,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.12 : 7,356.72 = 2,973.20 : x
  2. Step 2: Convert to fraction form
    5,331.12/7,356.72 = 2,973.20/x
  3. Step 3: Cross multiply
    5,331.12x = 7,356.72 × 2,973.20
  4. Step 4: Simplify right side
    5,331.12x = 21,872,999.90
  5. Step 5: Solve for x
    x = 21,872,999.90/5,331.12
  6. Step 6: Final answer
    x = 4,102.89

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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.