Home / 5,235.40-7,853.46-1,339.84

Finding the Fourth Proportional to 5,235.40, 7,853.46 and 1,339.84

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Solution

The fourth proportional to 5,235.40, 7,853.46 and 1,339.84 is: 2,009.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.40 : 7,853.46 = 1,339.84 : x
  2. Step 2: Convert to fraction form
    5,235.40/7,853.46 = 1,339.84/x
  3. Step 3: Cross multiply
    5,235.40x = 7,853.46 × 1,339.84
  4. Step 4: Simplify right side
    5,235.40x = 10,522,379.85
  5. Step 5: Solve for x
    x = 10,522,379.85/5,235.40
  6. Step 6: Final answer
    x = 2,009.85

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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.