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Finding the Fourth Proportional to 5,285.59, 7,928.73 and 1,775.94

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Solution

The fourth proportional to 5,285.59, 7,928.73 and 1,775.94 is: 2,664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.59 : 7,928.73 = 1,775.94 : x
  2. Step 2: Convert to fraction form
    5,285.59/7,928.73 = 1,775.94/x
  3. Step 3: Cross multiply
    5,285.59x = 7,928.73 × 1,775.94
  4. Step 4: Simplify right side
    5,285.59x = 14,080,948.76
  5. Step 5: Solve for x
    x = 14,080,948.76/5,285.59
  6. Step 6: Final answer
    x = 2,664.03

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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.