Home / 3,507.52-5,260.60-1,315.80

Finding the Fourth Proportional to 3,507.52, 5,260.60 and 1,315.80

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Solution

The fourth proportional to 3,507.52, 5,260.60 and 1,315.80 is: 1,973.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.52 : 5,260.60 = 1,315.80 : x
  2. Step 2: Convert to fraction form
    3,507.52/5,260.60 = 1,315.80/x
  3. Step 3: Cross multiply
    3,507.52x = 5,260.60 × 1,315.80
  4. Step 4: Simplify right side
    3,507.52x = 6,921,897.48
  5. Step 5: Solve for x
    x = 6,921,897.48/3,507.52
  6. Step 6: Final answer
    x = 1,973.44

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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.