Home / 5,664.16-7,814.80-3,179.68

Finding the Fourth Proportional to 5,664.16, 7,814.80 and 3,179.68

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Solution

The fourth proportional to 5,664.16, 7,814.80 and 3,179.68 is: 4,386.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.16 : 7,814.80 = 3,179.68 : x
  2. Step 2: Convert to fraction form
    5,664.16/7,814.80 = 3,179.68/x
  3. Step 3: Cross multiply
    5,664.16x = 7,814.80 × 3,179.68
  4. Step 4: Simplify right side
    5,664.16x = 24,848,563.26
  5. Step 5: Solve for x
    x = 24,848,563.26/5,664.16
  6. Step 6: Final answer
    x = 4,386.98

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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.