Home / 5,237.42-7,856.64-1,949.72

Finding the Fourth Proportional to 5,237.42, 7,856.64 and 1,949.72

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Solution

The fourth proportional to 5,237.42, 7,856.64 and 1,949.72 is: 2,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.42 : 7,856.64 = 1,949.72 : x
  2. Step 2: Convert to fraction form
    5,237.42/7,856.64 = 1,949.72/x
  3. Step 3: Cross multiply
    5,237.42x = 7,856.64 × 1,949.72
  4. Step 4: Simplify right side
    5,237.42x = 15,318,208.86
  5. Step 5: Solve for x
    x = 15,318,208.86/5,237.42
  6. Step 6: Final answer
    x = 2,924.77

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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.