Home / 2,697.20-3,722.12-1,518.28

Finding the Fourth Proportional to 2,697.20, 3,722.12 and 1,518.28

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Solution

The fourth proportional to 2,697.20, 3,722.12 and 1,518.28 is: 2,095.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.20 : 3,722.12 = 1,518.28 : x
  2. Step 2: Convert to fraction form
    2,697.20/3,722.12 = 1,518.28/x
  3. Step 3: Cross multiply
    2,697.20x = 3,722.12 × 1,518.28
  4. Step 4: Simplify right side
    2,697.20x = 5,651,224.15
  5. Step 5: Solve for x
    x = 5,651,224.15/2,697.20
  6. Step 6: Final answer
    x = 2,095.22

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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.