Home / 3,500.31-5,250.60-1,308.81

Finding the Fourth Proportional to 3,500.31, 5,250.60 and 1,308.81

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Solution

The fourth proportional to 3,500.31, 5,250.60 and 1,308.81 is: 1,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.31 : 5,250.60 = 1,308.81 : x
  2. Step 2: Convert to fraction form
    3,500.31/5,250.60 = 1,308.81/x
  3. Step 3: Cross multiply
    3,500.31x = 5,250.60 × 1,308.81
  4. Step 4: Simplify right side
    3,500.31x = 6,872,037.79
  5. Step 5: Solve for x
    x = 6,872,037.79/3,500.31
  6. Step 6: Final answer
    x = 1,963.27

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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.