Home / 5,281.44-7,287.72-3,156.96

Finding the Fourth Proportional to 5,281.44, 7,287.72 and 3,156.96

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Solution

The fourth proportional to 5,281.44, 7,287.72 and 3,156.96 is: 4,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.44 : 7,287.72 = 3,156.96 : x
  2. Step 2: Convert to fraction form
    5,281.44/7,287.72 = 3,156.96/x
  3. Step 3: Cross multiply
    5,281.44x = 7,287.72 × 3,156.96
  4. Step 4: Simplify right side
    5,281.44x = 23,007,040.53
  5. Step 5: Solve for x
    x = 23,007,040.53/5,281.44
  6. Step 6: Final answer
    x = 4,356.21

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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.