Home / 5,168.85-7,135.65-3,499.08

Finding the Fourth Proportional to 5,168.85, 7,135.65 and 3,499.08

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Solution

The fourth proportional to 5,168.85, 7,135.65 and 3,499.08 is: 4,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.85 : 7,135.65 = 3,499.08 : x
  2. Step 2: Convert to fraction form
    5,168.85/7,135.65 = 3,499.08/x
  3. Step 3: Cross multiply
    5,168.85x = 7,135.65 × 3,499.08
  4. Step 4: Simplify right side
    5,168.85x = 24,968,210.20
  5. Step 5: Solve for x
    x = 24,968,210.20/5,168.85
  6. Step 6: Final answer
    x = 4,830.52

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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.