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Finding the Fourth Proportional to 4,430, 6,628.28 and 2,644.44

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Solution

The fourth proportional to 4,430, 6,628.28 and 2,644.44 is: 3,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430 : 6,628.28 = 2,644.44 : x
  2. Step 2: Convert to fraction form
    4,430/6,628.28 = 2,644.44/x
  3. Step 3: Cross multiply
    4,430x = 6,628.28 × 2,644.44
  4. Step 4: Simplify right side
    4,430x = 17,528,088.76
  5. Step 5: Solve for x
    x = 17,528,088.76/4,430
  6. Step 6: Final answer
    x = 3,956.68

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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.