Home / 6,619.32-9,135.45-4,103.10

Finding the Fourth Proportional to 6,619.32, 9,135.45 and 4,103.10

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Solution

The fourth proportional to 6,619.32, 9,135.45 and 4,103.10 is: 5,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.32 : 9,135.45 = 4,103.10 : x
  2. Step 2: Convert to fraction form
    6,619.32/9,135.45 = 4,103.10/x
  3. Step 3: Cross multiply
    6,619.32x = 9,135.45 × 4,103.10
  4. Step 4: Simplify right side
    6,619.32x = 37,483,664.90
  5. Step 5: Solve for x
    x = 37,483,664.90/6,619.32
  6. Step 6: Final answer
    x = 5,662.77

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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.