Home / 3,515.04-5,272.56-1,325.61

Finding the Fourth Proportional to 3,515.04, 5,272.56 and 1,325.61

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Solution

The fourth proportional to 3,515.04, 5,272.56 and 1,325.61 is: 1,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.04 : 5,272.56 = 1,325.61 : x
  2. Step 2: Convert to fraction form
    3,515.04/5,272.56 = 1,325.61/x
  3. Step 3: Cross multiply
    3,515.04x = 5,272.56 × 1,325.61
  4. Step 4: Simplify right side
    3,515.04x = 6,989,358.26
  5. Step 5: Solve for x
    x = 6,989,358.26/3,515.04
  6. Step 6: Final answer
    x = 1,988.42

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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.