Home / 3,505.72-5,258.55-1,313.92

Finding the Fourth Proportional to 3,505.72, 5,258.55 and 1,313.92

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Solution

The fourth proportional to 3,505.72, 5,258.55 and 1,313.92 is: 1,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.72 : 5,258.55 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    3,505.72/5,258.55 = 1,313.92/x
  3. Step 3: Cross multiply
    3,505.72x = 5,258.55 × 1,313.92
  4. Step 4: Simplify right side
    3,505.72x = 6,909,314.02
  5. Step 5: Solve for x
    x = 6,909,314.02/3,505.72
  6. Step 6: Final answer
    x = 1,970.87

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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.