Home / 5,285.32-7,927.34-1,390.03

Finding the Fourth Proportional to 5,285.32, 7,927.34 and 1,390.03

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Solution

The fourth proportional to 5,285.32, 7,927.34 and 1,390.03 is: 2,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.32 : 7,927.34 = 1,390.03 : x
  2. Step 2: Convert to fraction form
    5,285.32/7,927.34 = 1,390.03/x
  3. Step 3: Cross multiply
    5,285.32x = 7,927.34 × 1,390.03
  4. Step 4: Simplify right side
    5,285.32x = 11,019,240.42
  5. Step 5: Solve for x
    x = 11,019,240.42/5,285.32
  6. Step 6: Final answer
    x = 2,084.88

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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.