Home / 3,533.68-5,290.80-2,665.36

Finding the Fourth Proportional to 3,533.68, 5,290.80 and 2,665.36

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Solution

The fourth proportional to 3,533.68, 5,290.80 and 2,665.36 is: 3,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,533.68 : 5,290.80 = 2,665.36 : x
  2. Step 2: Convert to fraction form
    3,533.68/5,290.80 = 2,665.36/x
  3. Step 3: Cross multiply
    3,533.68x = 5,290.80 × 2,665.36
  4. Step 4: Simplify right side
    3,533.68x = 14,101,886.69
  5. Step 5: Solve for x
    x = 14,101,886.69/3,533.68
  6. Step 6: Final answer
    x = 3,990.71

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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.