Home / 3,507.83-5,260.37-1,315.37

Finding the Fourth Proportional to 3,507.83, 5,260.37 and 1,315.37

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Solution

The fourth proportional to 3,507.83, 5,260.37 and 1,315.37 is: 1,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.83 : 5,260.37 = 1,315.37 : x
  2. Step 2: Convert to fraction form
    3,507.83/5,260.37 = 1,315.37/x
  3. Step 3: Cross multiply
    3,507.83x = 5,260.37 × 1,315.37
  4. Step 4: Simplify right side
    3,507.83x = 6,919,309.87
  5. Step 5: Solve for x
    x = 6,919,309.87/3,507.83
  6. Step 6: Final answer
    x = 1,972.53

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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.