Home / 5,175.90-7,140.15-3,405.24

Finding the Fourth Proportional to 5,175.90, 7,140.15 and 3,405.24

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Solution

The fourth proportional to 5,175.90, 7,140.15 and 3,405.24 is: 4,697.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.90 : 7,140.15 = 3,405.24 : x
  2. Step 2: Convert to fraction form
    5,175.90/7,140.15 = 3,405.24/x
  3. Step 3: Cross multiply
    5,175.90x = 7,140.15 × 3,405.24
  4. Step 4: Simplify right side
    5,175.90x = 24,313,924.39
  5. Step 5: Solve for x
    x = 24,313,924.39/5,175.90
  6. Step 6: Final answer
    x = 4,697.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.