Home / 5,285.32-7,928.89-1,775.66

Finding the Fourth Proportional to 5,285.32, 7,928.89 and 1,775.66

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Solution

The fourth proportional to 5,285.32, 7,928.89 and 1,775.66 is: 2,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.32 : 7,928.89 = 1,775.66 : x
  2. Step 2: Convert to fraction form
    5,285.32/7,928.89 = 1,775.66/x
  3. Step 3: Cross multiply
    5,285.32x = 7,928.89 × 1,775.66
  4. Step 4: Simplify right side
    5,285.32x = 14,079,028.20
  5. Step 5: Solve for x
    x = 14,079,028.20/5,285.32
  6. Step 6: Final answer
    x = 2,663.80

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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.