Home / 3,599.60-5,398.68-1,290.56

Finding the Fourth Proportional to 3,599.60, 5,398.68 and 1,290.56

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Solution

The fourth proportional to 3,599.60, 5,398.68 and 1,290.56 is: 1,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.60 : 5,398.68 = 1,290.56 : x
  2. Step 2: Convert to fraction form
    3,599.60/5,398.68 = 1,290.56/x
  3. Step 3: Cross multiply
    3,599.60x = 5,398.68 × 1,290.56
  4. Step 4: Simplify right side
    3,599.60x = 6,967,320.46
  5. Step 5: Solve for x
    x = 6,967,320.46/3,599.60
  6. Step 6: Final answer
    x = 1,935.58

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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.