Home / 6,898.20-9,518.96-3,913.32

Finding the Fourth Proportional to 6,898.20, 9,518.96 and 3,913.32

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Solution

The fourth proportional to 6,898.20, 9,518.96 and 3,913.32 is: 5,400.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.20 : 9,518.96 = 3,913.32 : x
  2. Step 2: Convert to fraction form
    6,898.20/9,518.96 = 3,913.32/x
  3. Step 3: Cross multiply
    6,898.20x = 9,518.96 × 3,913.32
  4. Step 4: Simplify right side
    6,898.20x = 37,250,736.55
  5. Step 5: Solve for x
    x = 37,250,736.55/6,898.20
  6. Step 6: Final answer
    x = 5,400.07

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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.