Home / 4,428.80-6,644.34-1,308.68

Finding the Fourth Proportional to 4,428.80, 6,644.34 and 1,308.68

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Solution

The fourth proportional to 4,428.80, 6,644.34 and 1,308.68 is: 1,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.80 : 6,644.34 = 1,308.68 : x
  2. Step 2: Convert to fraction form
    4,428.80/6,644.34 = 1,308.68/x
  3. Step 3: Cross multiply
    4,428.80x = 6,644.34 × 1,308.68
  4. Step 4: Simplify right side
    4,428.80x = 8,695,314.87
  5. Step 5: Solve for x
    x = 8,695,314.87/4,428.80
  6. Step 6: Final answer
    x = 1,963.36

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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.