Home / 5,237.12-7,853.12-1,905.26

Finding the Fourth Proportional to 5,237.12, 7,853.12 and 1,905.26

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Solution

The fourth proportional to 5,237.12, 7,853.12 and 1,905.26 is: 2,856.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.12 : 7,853.12 = 1,905.26 : x
  2. Step 2: Convert to fraction form
    5,237.12/7,853.12 = 1,905.26/x
  3. Step 3: Cross multiply
    5,237.12x = 7,853.12 × 1,905.26
  4. Step 4: Simplify right side
    5,237.12x = 14,962,235.41
  5. Step 5: Solve for x
    x = 14,962,235.41/5,237.12
  6. Step 6: Final answer
    x = 2,856.96

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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.