Home / 4,975-7,447.36-3,318.28

Finding the Fourth Proportional to 4,975, 7,447.36 and 3,318.28

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Solution

The fourth proportional to 4,975, 7,447.36 and 3,318.28 is: 4,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975 : 7,447.36 = 3,318.28 : x
  2. Step 2: Convert to fraction form
    4,975/7,447.36 = 3,318.28/x
  3. Step 3: Cross multiply
    4,975x = 7,447.36 × 3,318.28
  4. Step 4: Simplify right side
    4,975x = 24,712,425.74
  5. Step 5: Solve for x
    x = 24,712,425.74/4,975
  6. Step 6: Final answer
    x = 4,967.32

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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.