Home / 3,515.40-5,272.68-1,175.12

Finding the Fourth Proportional to 3,515.40, 5,272.68 and 1,175.12

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Solution

The fourth proportional to 3,515.40, 5,272.68 and 1,175.12 is: 1,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.40 : 5,272.68 = 1,175.12 : x
  2. Step 2: Convert to fraction form
    3,515.40/5,272.68 = 1,175.12/x
  3. Step 3: Cross multiply
    3,515.40x = 5,272.68 × 1,175.12
  4. Step 4: Simplify right side
    3,515.40x = 6,196,031.72
  5. Step 5: Solve for x
    x = 6,196,031.72/3,515.40
  6. Step 6: Final answer
    x = 1,762.54

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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.