Home / 5,217.96-7,826.31-1,322.40

Finding the Fourth Proportional to 5,217.96, 7,826.31 and 1,322.40

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Solution

The fourth proportional to 5,217.96, 7,826.31 and 1,322.40 is: 1,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.96 : 7,826.31 = 1,322.40 : x
  2. Step 2: Convert to fraction form
    5,217.96/7,826.31 = 1,322.40/x
  3. Step 3: Cross multiply
    5,217.96x = 7,826.31 × 1,322.40
  4. Step 4: Simplify right side
    5,217.96x = 10,349,512.34
  5. Step 5: Solve for x
    x = 10,349,512.34/5,217.96
  6. Step 6: Final answer
    x = 1,983.44

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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.