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Finding the Fourth Proportional to 5,285.57, 7,927.08 and 1,775.70

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Solution

The fourth proportional to 5,285.57, 7,927.08 and 1,775.70 is: 2,663.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.57 : 7,927.08 = 1,775.70 : x
  2. Step 2: Convert to fraction form
    5,285.57/7,927.08 = 1,775.70/x
  3. Step 3: Cross multiply
    5,285.57x = 7,927.08 × 1,775.70
  4. Step 4: Simplify right side
    5,285.57x = 14,076,115.96
  5. Step 5: Solve for x
    x = 14,076,115.96/5,285.57
  6. Step 6: Final answer
    x = 2,663.12

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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.